Page: 1 of 3
Section: 1 of 11 1068 Listings
Sections: | 1 Ac-Bl | | 2 Bl-Ce | | 3 Ce-Dr | | 4
Dr-Ha | | 5 He-La |
| Feature Name | County | Type | Latitude | Longitude | Alt | USGS 7.5' Map |
| Acalanes | Contra Costa | civil | 375356N | 1220833W | - | Briones Valley |
| Adeline (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Alamo | Contra Costa | pop place | 375101N | 1220152W | 280 | Las Trampas Ridge |
| Alamo Creek | Contra Costa | stream | 374248N | 1215447W | - | Dublin |
| Alamo Creek | Contra Costa | stream | 374526N | 1214920W | - | Tassajara |
| Alamo Oaks | Contra Costa | pop place | 375022N | 1215931W | 520 | Diablo |
| Alamo Ridge | Contra Costa | ridge | 375038N | 1220040W | 715 | Las Trampas Ridge |
| Alder Creek | Contra Costa | stream | 375131N | 1215356W | - | Diablo |
| Alexander Park | Contra Costa | park | 380311N | 1221305W | - | Benicia |
| Alhambra Cemetery | Contra Costa | cemetery | 380106N | 1220839W | - | Benicia |
| Alhambra Creek | Contra Costa | stream | 375824N | 1220730W | - | Briones Valley |
| Alhambra Valley | Contra Costa | valley | 380043N | 1220742W | - | Benicia |
| Almondridge Park | Contra Costa | park | 380007N | 1214540W | - | Antioch North |
| Alvarado Adobe (historic landmark #512) (1842) | Contra Costa | building | n/a | n/a | - | Richmond |
| Alvarado Park | Contra Costa | park | 375712N | 1221908W | - | Richmond |
| Amador Valley | Contra Costa | valley | 374500N | 1215650W | - | Diablo |
| Ambrose (historical) | Contra Costa | pop place | 380207N | 1215656W | 13 | Honker Bay |
| Ambrose Park | Contra Costa | park | 380105N | 1215616W | - | Honker Bay |
| Ambrose School (historical) | Contra Costa | school | 380136N | 1215653W | - | Honker Bay |
| Antioch | Contra Costa | pop place | 380018N | 1214817W | 40 | Antioch North |
| Antioch Bridge | Contra Costa | bridge | 380129N | 1214458W | - | Jersey Island |
| Antioch City Marina | Contra Costa | locale | 380111N | 1214912W | - | Antioch North |
| Antioch City Park | Contra Costa | park | 380038N | 1214820W | - | Antioch North |
| Antioch Community Park | Contra Costa | park | 375844N | 1214906W | - | Antioch South |
| Antioch Historical Center | Contra Costa | building | 380052N | 1214840W | - | Antioch North |
| Antioch Hospital (historical) | Contra Costa | hospital | 380050N | 1214816W | 30 | Antioch North |
| Antioch Municipal Reservoir | Contra Costa | reservoir | 375840N | 1214829W | - | Antioch South |
| Antioch Pier | Contra Costa | locale | 380112N | 1214457W | - | Jersey Island |
| Antioch Point | Contra Costa | cape | 380126N | 1214928W | - | Antioch North |
| Antioch Post Office (Est. 1851) | Contra Costa | post office | 375949N | 1214830W | - | Antioch South |
| Antioch Public Fishing Pier | Contra Costa | locale | 380106N | 1214848W | - | Antioch North |
| Antioch Reservoir 3-000 Dam | Contra Costa | dam | 375830N | 1214818W | - | Antioch South |
| Antioch Station (historical) | Contra Costa | locale | 380007N | 1214818W | 45 | Antioch North |
| Apostolic Pentecostal Church (historical) | Contra Costa | church | 375532N | 1222042W | - | Richmond |
| Arbolado Park | Contra Costa | park | 375508N | 1215958W | - | Clayton |
| Arbor | Contra Costa | pop place | 375742N | 1214320W | 96 | Brentwood |
| Argyle Number 2 31-030 Dam | Contra Costa | dam | 375900N | 1221724W | - | Richmond |
| Arlington Park | Contra Costa | park | 375524N | 1221728W | - | Richmond |
| Armstrong Ranch | Contra Costa | locale | 374932N | 1213826W | 95 | Byron Hot Springs |
| Arroyo Cavelano | Contra Costa | stream | 374754N | 1214650W | - | Tassajara |
| Arroyo Cayetano | Contra Costa | stream | 374754N | 1214650W | - | Tassajara |
| Arroyo Cerro Del | Contra Costa | stream | 375417N | 1220005W | - | Walnut Creek |
| Arroyo Covelano | Contra Costa | stream | 374754N | 1214650W | - | Tassajara |
| Arroyo De La Tasajera | Contra Costa | stream | 375105N | 1215213W | - | Tassajara |
| Arroyo De Las Nueces | Contra Costa | stream | 380127N | 1220409W | - | Vine Hill |
| Arroyo De Las Nueces Y Bolbones | Contra Costa | civil | 375436N | 1220010W | - | Walnut Creek |
| Arroyo De Los Nogales | Contra Costa | stream | 380127N | 1220409W | - | Vine Hill |
| Arroyo De Los Poblanos | Contra Costa | stream | 380052N | 1214100W | - | Jersey Island |
| Arroyo De San Leandro | Contra Costa | stream | 374500N | 1220454W | - | Las Trampas Ridge |
| Arroyo Del Hambre | Contra Costa | stream | 375824N | 1220730W | - | Briones Valley |
| Arroyo Del Hambre | Contra Costa | stream | 380126N | 1220824W | - | Benicia |
| Arroyo Del Injerto | Contra Costa | stream | 375353N | 1220330W | - | Walnut Creek |
| Artist Point | Contra Costa | summit | 375045N | 1215558W | 1680 | Diablo |
| Associated (Historical) | Contra Costa | pop place | 380158N | 1220427W | 9 | Vine Hill |
| Associated Post Office (Est. n/a) | Contra Costa | post office | 380158N | 1220427W | - | Vine Hill |
| Atchison Village (subdivision) | Contra Costa | pop place | 375601N | 1222214W | 10 | Richmond |
| Atchison Village Park | Contra Costa | park | 375603N | 1222214W | - | Richmond |
| Avon | Contra Costa | pop place | 380158N | 1220427W | 9 | Vine Hill |
| Back Creek | Contra Costa | stream | 375521N | 1215531W | - | Clayton |
| Bahia De Los Suysunes | Contra Costa | bay | 380429N | 1220340W | - | Vine Hill |
| Bahia De Sonoma | Contra Costa | bay | 375924N | 1222206W | - | Richmond |
| Bahilla De Suysun | Contra Costa | bay | 380429N | 1220340W | - | Vine Hill |
| Bald Peak | Contra Costa | summit | 375300N | 1221315W | 1905 | Briones Valley |
| Bald Ridge | Contra Costa | ridge | 375333N | 1215527W | 2645 | Clayton |
| Baldy Peak | Contra Costa | summit | 375300N | 1221315W | 1905 | Briones Valley |
| Bancroft | Contra Costa | pop place | 375602N | 1220246W | 80 | Walnut Creek |
| Barbecue Terrace | Contra Costa | bench | 375140N | 1215610W | - | Diablo |
| Bates (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Bay Point | Contra Costa | pop place | 380246N | 1220111W | 10 | Vine Hill |
| Bay Point | Contra Costa | pop place | 380145N | 1215738W | - | Honker Bay |
| Bay Point (historical) | Contra Costa | pop place | 380245N | 1220143W | 9 | Vine Hill |
| Bay Point Yacht Harbor (historical) | Contra Costa | harbor | 380315N | 1220110W | - | Vine Hill |
| Bayfront Park | Contra Costa | park | 380042N | 1221748W | - | Mare Island |
| Bayo Vista | Contra Costa | pop place | 380213N | 1221537W | 40 | Mare Island |
| Bear Creek | Contra Costa | stream | 375523N | 1221014W | - | Briones Valley |
| Bearinda Cove | Contra Costa | bay | 375553N | 1221128W | - | Briones Valley |
| Behring Museum | Contra Costa | building | 374759N | 1215508W | - | Diablo |
| Belloma Slough | Contra Costa | gut | 380310N | 1220110W | Vine Hill | |
| Benicia-Martinez Bridge | Contra Costa | bridge | 380219N | 1220713W | Vine Hill | |
| Berkeley Highlands (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Berkeley Hills | Contra Costa | range | 375259N | 1221415W | - | Briones Valley |
| Bethel Island | Contra Costa | island | 380153N | 1213823W | - | Jersey Island |
| Bethel Island | Contra Costa | pop place | 380054N | 1213822W | 5 | Jersey Island |
| Bethel Island Post Office (Est. Dec. 27, 1897) | Contra Costa | post office | 380055N | 1213821W | - | Jersey Island |
| Big Break | Contra Costa | bay | 380100N | 1214233W | - | Jersey Island |
| Big Break Marina | Contra Costa | locale | 380046N | 1214355W | - | Jersey Island |
| Big Bull Valley | Contra Costa | valley | 380249N | 1221052W | - | Benicia |
| Big Canyon | Contra Costa | valley | 374320N | 1215615W | - | Dublin |
| Bird Island | Contra Costa | island | 375345N | 1222128W | - | Richmond |
| Bixler | Contra Costa | pop place | 375625N | 1213716W | 10 | Woodward Island |
| Black Diamond | Contra Costa | pop place | 380141N | 1215301W | 30 | Honker Bay |
| Black Diamond Post Office (Est. May 25, 1911) | Contra Costa | post office | 380144N | 1215300W | - | Honker Bay |
| Black Hawk (Historical) | Contra Costa | pop place | 374847N | 1215508W | - | Diablo |
| Black Hawk Ranch | Contra Costa | locale | 374933N | 1215503W | - | Diablo |
| Black Hawk Ridge | Contra Costa | ridge | 375012N | 1215410W | - | Diablo |
| Black Hills | Contra Costa | range | 375012N | 1215217W | - | Tassajara |
| Black Hills | Contra Costa | range | 375513N | 1221130W | - | Briones Valley |
| Black Hills Reservoir | Contra Costa | reservoir | 375040N | 1215658W | - | Diablo |
| Black Point | Contra Costa | summit | 375444N | 1215725W | 1791 | Clayton |
| Blackhawk | Contra Costa | pop place | 374915N | 1215424W | - | Diablo |
Section: 2 of
| Feature Name | County | Type | Latitude | Longitude | Alt | USGS 7.5' Map |
| Blackhawk Ranch | Contra Costa | locale | 374933N | 1215503W | - | Diablo |
| Blind Point | Contra Costa | cape | 380156N | 1214307W | - | Jersey Island |
| Blume (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Bolinger Creek | Contra Costa | stream | 374623N | 1215945W | - | Diablo |
| Bollinger Canyon | Contra Costa | valley | 374522N | 1215945W | - | Diablo |
| Bollinger Canyon Creek | Contra Costa | stream | 374623N | 1215945W | - | Diablo |
| Bollinger Creek | Contra Costa | stream | 374623N | 1215945W | - | Diablo |
| Bollmans (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Booker T Anderson Eastshore Park | Contra Costa | park | 375508N | 1221924W | - | Richmond |
| Boon Hill | Contra Costa | summit | 374942N | 1215846W | 640 | Diablo |
| Boone Acres Park | Contra Costa | park | 374413N | 1215640W | - | Dublin |
| Boorman Park | Contra Costa | park | 375543N | 1222037W | - | Richmond |
| Boy Scout Camp Cove | Contra Costa | bay | 375555N | 1221153W | - | Briones Valley |
| Boyd Park | Contra Costa | park | 375912N | 1220717W | - | Walnut Creek |
| Bradford Island | Contra Costa | island | 380438N | 1213944W | - | Jersey Island |
| Bradford Landing | Contra Costa | locale | 380431N | 1214030W | - | Jersey Island |
| Brazil Quarry Park | Contra Costa | park | 375739N | 1215807W | - | Clayton |
| Brentwood | Contra Costa | pop place | 375555N | 1214141W | 79 | Brentwood |
| Brentwood Gas Field | Contra Costa | oilfield | 375643N | 1214436W | - | Brentwood |
| Brentwood Park | Contra Costa | park | 375603N | 1214133W | - | Brentwood |
| Brentwood Post Office (Est. Sept. 30, 1878) | Contra Costa | post office | 375601N | 1214140W | - | Brentwood |
| Bret Harte Park | Contra Costa | park | 374925N | 1215912W | - | Diablo |
| Brickyard Cove | Contra Costa | bay | 375428N | 1222310W | - | San Quentin |
| Brickyard Cove Marina | Contra Costa | locale | 375432N | 1222325W | - | San Quentin |
| Bridgehead | Contra Costa | pop place | 380018N | 1214516W | 40 | Antioch North |
| Briones 31-015 Dam | Contra Costa | dam | 375448N | 1221230W | - | Briones Valley |
| Briones Dam | Contra Costa | dam | 375450N | 1221226W | - | Briones Valley |
| Briones Hills | Contra Costa | range | 375635N | 1220844W | - | Briones Valley |
| Briones Regional Park | Contra Costa | park | 375616N | 1220816W | - | Briones Valley |
| Briones Reservoir | Contra Costa | reservoir | 375450N | 1221226W | - | Briones Valley |
| Briones Valley | Contra Costa | valley | 375450N | 1221226W | - | Briones Valley |
| Briones Valley | Contra Costa | valley | 375325N | 1214328W | - | Brentwood |
| Broad Slough | Contra Costa | bay | 380248N | 1215018W | - | Antioch North |
| Brook Street Park | Contra Costa | park | 375319N | 1220710W | - | Walnut Creek |
| Brooks Island | Contra Costa | island | 375347N | 1222115W | 159 | Richmond |
| Brooks Island Regional Shoreline | Contra Costa | park | 375357N | 1222131W | - | Richmond |
| Brookwood Park | Contra Costa | park | 375604N | 1220540W | - | Walnut Creek |
| Brookwood Reservoir | Contra Costa | reservoir | 375528N | 1220627W | - | Walnut Creek |
| Brose (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Brown Island | Contra Costa | island | 380220N | 1215149W | - | Antioch North |
| Browns Island | Contra Costa | island | 380220N | 1215149W | - | Antioch North |
| Browns Island Regional Shoreline | Contra Costa | park | 380227N | 1215150W | - | Antioch North |
| Brushy Creek | Contra Costa | stream | 375008N | 1213609W | - | Clifton Court Forebay |
| Buchanan Field | Contra Costa | airport | 375922N | 1220325W | 23 | Walnut Creek |
| Buchanan Park | Contra Costa | park | 380001N | 1215315W | - | Honker Bay |
| Buckeye Camp | Contra Costa | locale | 375120N | 1215555W | - | Diablo |
| Buckhorn Creek | Contra Costa | stream | 374715N | 1220405W | - | Las Trampas Ridge |
| Buckle Point | Contra Costa | ridge | 375246N | 1215746W | - | Clayton |
| Buenaventura River | Contra Costa | stream | 380400N | 1215100W | - | Antioch North |
| Bulls Head Point | Contra Costa | cape | 380209N | 1220655W | - | Vine Hill |
| Burg Park | Contra Costa | park | 375633N | 1222018W | - | Richmond |
| Burton Valley | Contra Costa | valley | 375230N | 1220546W | - | Las Trampas Ridge |
| Bush Hill | Contra Costa | summit | 380231N | 1221218W | 683 | Benicia |
| Byron | Contra Costa | pop place | 375202N | 1213813W | 26 | Byron Hot Springs |
| Byron Airport | Contra Costa | airport | 375009N | 1213813W | 65 | Byron Hot Springs |
| Byron Brentwood Knightson Cemetery | Contra Costa | cemetery | 375437N | 1213852W | - | Brentwood |
| Byron Hot Springs | Contra Costa | spring | 375050N | 1213754W | 48 | Byron Hot Springs |
| Byron Hot Springs School (historical) | Contra Costa | school | 375002N | 1213721W | 40 | Clifton Court Forebay |
| Byron Hot Springs Station (historical) | Contra Costa | locale | 375045N | 1213705W | 25 | Clifton Court Forebay |
| Byron Tract | Contra Costa | civil | 375315N | 1213523W | - | Woodward Island |
| C L Tilden Park 29-002 Dam | Contra Costa | dam | 375348N | 1221500W | - | Richmond |
| Cabrillo Bay | Contra Costa | bay | 375438N | 1213611W | - | Woodward Island |
| Califton Court Forebay 1-064 Dam | Contra Costa | dam | 375100N | 1213400W | - | Clifton Court Forebay |
| Calletano Creek | Contra Costa | stream | 374754N | 1214650W | - | Tassajara |
| Cambridge Park | Contra Costa | park | 375711N | 1220247W | - | Walnut Creek |
| Camp Herms | Contra Costa | locale | 375529N | 1221710W | - | Richmond |
| Camp Stoneman | Contra Costa | locale | 380027N | 1215512W | - | Honker Bay |
| Cañada De Los Poblanos | Contra Costa | valley | 375208N | 1214520W | - | Tassajara |
| Cañada De Los Vaqueros | Contra Costa | civil | 374836N | 1214200W | - | Cañada De Los Vaqueros |
| Canada De San Cayton | Contra Costa | stream | 374754N | 1214650W | - | Tassajara |
| Cañada Del Cierbo | Contra Costa | valley | 380232N | 1221417W | - | Benicia |
| Canada Del Hambre | Contra Costa | valley | 380043N | 1220742W | - | Benicia |
| Canada Del Hambre Y Las Bolsas | Contra Costa | civil | 380200N | 1221212W | - | Benicia |
| Cañada Del Hambre Y Las Bolsas | Contra Costa | civil | 375550N | 1220611W | - | Cañada Del Hambre Y Las Bolsas |
| Canal Park | Contra Costa | park | 375920N | 1215016W | - | Antioch South |
| Canyon | Contra Costa | pop place | 374954N | 1221112W | 622 | Oakland East |
| Canyon Trail Park | Contra Costa | park | 375551N | 1221852W | Richmond | |
| Captain Pedro Fages Trail 1772 (historic landmark #853) (March 31, 1772) | Contra Costa | locale | n/a | n/a | - | n/a |
| Carquines Bay | Contra Costa | bay | 380500N | 1221500W | - | Mare Island |
| Carquinez Bay | Contra Costa | bay | 380500N | 1221500W | - | Mare Island |
| Carquinez Bridge | Contra Costa | bridge | 380341N | 1221327W | - | Benecia |
| Carquinez Point | Contra Costa | locale | 380223N | 1221030W | - | Benicia |
| Carquinez Strait Regional Shoreline | Contra Costa | park | 380258N | 1221131W | - | Benicia |
| Carquinez Toll Bridge | Contra Costa | bridge | 380341N | 1221327W | - | Benecia |
| Casa Cerrito Park | Contra Costa | park | 375459N | 1221808W | - | Richmond |
| Castle Hill | Contra Costa | summit | 375138N | 1220303W | 800 | Las Trampas Ridge |
| Castle Rock | Contra Costa | pillar | 375253N | 1215900W | 972 | Clayton |
| Castle Rock Park | Contra Costa | park | 375327N | 1215931W | - | Clayton |
| Castro Creek | Contra Costa | stream | 375806N | 1222422W | - | San Quentin |
| Castro Home (historic landmark #356) | Contra Costa | building | n/a | n/a | - | n/a |
| Castro Park | Contra Costa | park | 375516N | 1221822W | - | Richmond |
| Castro Point | Contra Costa | cape | 375612N | 1222444W | - | San Quentin |
| Castro Rocks | Contra Costa | bar | 375556N | 1222503W | - | San Quentin |
| Catholic Cemetery | Contra Costa | cemetery | 380102N | 1220841W | - | Benicia |
| Cattail Picnic Area | Contra Costa | locale | 375823N | 1214948W | - | Antioch South |
| Cave Point | Contra Costa | summit | 375028N | 1215251W | 2080 | Diablo |
| Cavelano Creek | Contra Costa | stream | 374754N | 1214650W | - | Tassajara |
| Cayetano Creek | Contra Costa | stream | 374754N | 1214650W | - | Tassajara |
| Central Addition Park | Contra Costa | park | 380112N | 1215218W | - | Antioch North |
| Central and Great Valleys | Contra Costa | valley | 381400N | 1211800W | - | Lodi North |
Section: 3 of
| Feature Name | County | Type | Latitude | Longitude | Alt | USGS 7.5' Map |
| Central Park | Contra Costa | park | 375407N | 1221823W | - | Richmond |
| Cerrilo Creek | Contra Costa | stream | 375350N | 1221840W | - | Richmond |
| Cerrito (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Cerrito Creek | Contra Costa | stream | 375350N | 1221840W | - | Richmond |
| Cerrito de San Pablo (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Cerrito Vista Park | Contra Costa | park | 375451N | 1221756W | - | Richmond |
| Cerro Alto De Los Bolbones (historic landmark #905) | Contra Costa | summit | 375254N | 1215446W | 3849 | Clayton |
| Channel Marina | Contra Costa | locale | 375521N | 1222213W | - | Richmond |
| Chaparral Peak | Contra Costa | spring | 375242N | 1221319W | 1760 | Briones Valley |
| Chaparral Spring | Contra Costa | spring | 375517N | 1215251W | - | Clayton |
| Chaparral Springs | Contra Costa | spring | 375517N | 1215251W | - | Clayton |
| Charles Lee Tilden Regional Park | Contra Costa | park | 375341N | 1221426W | - | Briones Valley |
| Chase Pond | Contra Costa | lake | 375141N | 1215453W | - | Diablo |
| Chichibu Park | Contra Costa | park | 375910N | 1214849W | - | Antioch South |
| Chilpancingo Park | Contra Costa | park | 375824N | 1220358W | - | Walnut Creek |
| Christie | Contra Costa | pop place | 380011N | 1221220W | 270 | Benicia |
| City of New York of the Pacific | Contra Costa | pop place | 380141N | 1215301W | 30 | Honker Bay |
| Civic Park | Contra Costa | park | 375412N | 1220331W | - | Walnut Creek |
| Claremont Creek | Contra Costa | stream | 375138N | 1221428W | - | Briones Valley |
| Clayton | Contra Costa | pop place | 375628N | 1215605W | 394 | Clayton |
| Clayton Historical Society Museum | Contra Costa | building | 375629N | 1215601W | - | Clayton |
| Clayton Park | Contra Costa | park | 375631N | 1215615W | - | Clayton |
| Clayton Post Office (Est. Oct. 4, 1861) | Contra Costa | post office | 375628N | 1215605W | - | Clayton |
| Clayton Valley | Contra Costa | valley | 375800N | 1220101W | - | Walnut Creek |
| Clayton Valley Center Park | Contra Costa | park | 375656N | 1215756W | - | Clayton |
| Claytons | Contra Costa | pop place | 375628N | 1215605W | 394 | Clayton |
| Claytonville | Contra Costa | pop place | 375628N | 1215605W | 394 | Clayton |
| Clearwell Phase 2 1082-002 Dam | Contra Costa | dam | 380018N | 1220412W | - | Vine Hill |
| Clifton Court Forebay | Contra Costa | reservoir | 375030N | 1213328W | - | Clifton Court Forebay |
| Clifton Court Forebay | Contra Costa | reservoir | 375022N | 1213426W | 1 | Clifton Court Forebay |
| Clyde | Contra Costa | pop place | 380132N | 1220142W | 35 | Vine Hill |
| Coal Mine Tunnels | Contra Costa | tunnel | 375629N | 1214847W | - | Antioch South |
| Collier Canyon | Contra Costa | valley | 374605N | 1214933W | - | Tassajara |
| Concord | Contra Costa | pop place | 375841N | 1220148W | 80 | Walnut Creek |
| Concord Boulevard Park | Contra Costa | park | 375835N | 1215904W | - | Clayton |
| Concord Community Park | Contra Costa | park | 375755N | 1220046W | - | Walnut Creek |
| Concord Post Office (Est. March 28, 1872) | Contra Costa | post office | 375833N | 1220323W | - | Walnut Creek |
| Concord Station | Contra Costa | building | 375826N | 1220142W | - | Walnut Creek |
| Concord Yard | Contra Costa | other | 375720N | 1220132W | - | Walnut Creek |
| Columbia Park (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Coney Island | Contra Costa | island | 375045N | 1213254W | - | Clifton Court Forebay |
| Contra Costa (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Contra Loma Dam | Contra Costa | dam | 375842N | 1214818W | - | Antioch South |
| Contra Loma Dike Number 2 Dam | Contra Costa | dam | 375830N | 1214912W | - | Antioch South |
| Contra Loma Park | Contra Costa | park | 380006N | 1214930W | - | Antioch North |
| Contra Loma Reservoir | Contra Costa | reservoir | 375838N | 1214922W | - | Antioch South |
| Contra Loma Reservoir | Contra Costa | reservoir | 375830N | 1214912W | - | Antioch South |
| Contra Loma Reservoir | Contra Costa | reservoir | 375842N | 1214818W | - | Antioch South |
| Cornwall | Contra Costa | pop place | 380114N | 1215240W | 40 | Honker Bay |
| Cottonwood Canyon | Contra Costa | valley | 374526N | 1214920W | - | Tassajara |
| Cottonwood Creek | Contra Costa | stream | 374526N | 1214920W | - | Tassajara |
| County Line | Contra Costa | pop place | 375457N | 1221838W | 66 | Richmond |
| Cowell | Contra Costa | pop place | 375710N | 1215918W | 280 | Clayton |
| Cowell Junction (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Coyote Creek | Contra Costa | stream | 374520N | 1215643W | - | Diablo |
| Creekside Park | Contra Costa | park | 375937N | 1221708W | - | Richmond |
| Crescent Park | Contra Costa | park | 375455N | 1221923W | - | Richmond |
| Crockett | Contra Costa | pop place | 380309N | 1221243W | 118 | Benicia |
| Crockett Baptist Church (historical) | Contra Costa | church | 380313N | 1221319W | - | Benicia |
| Crockett Historical Museum | Contra Costa | building | 380320N | 1221313W | - | Benicia |
| Crockett Marina | Contra Costa | locale | 380325N | 1221335W | - | Benicia |
| Crockett Post Office (Est. April 9, 1883) | Contra Costa | post office | 380317N | 1221310W | - | Benicia |
| Crolona Heights | Contra Costa | pop place | 380317N | 1221303W | 140 | Benicia |
| Cull Canyon | valley | 374823N | 1220319W | - | Las Trampas Ridge | |
| Cull Creek | stream | 374815N | 1220313W | - | Las Trampas Ridge | |
| Curry Canyon | Contra Costa | valley | 375245N | 1215159W | - | Antioch South |
| Cutter Cove | Contra Costa | bay | 375513N | 1221204W | - | Briones Valley |
| Cypress Point | Contra Costa | cape | 375522N | 1222323W | - | San Quentin |
| Dan Cook Canyon | Contra Costa | valley | 375034N | 1215659W | - | Diablo |
| Danville | Contra Costa | pop place | 374918N | 1215956W | 368 | Diablo |
| Danville 31-028 Dam | Contra Costa | dam | 374848N | 1220012W | - | Las Trampas Ridge |
| Dark Canyon | Contra Costa | valley | 375311N | 1214923W | - | Antioch South |
| Davis Point | Contra Costa | cape | 380309N | 1221533W | - | Mare Island |
| De Anza Park | Contra Costa | park | 380131N | 1215507W | - | Honker Bay |
| Deep Cove | Contra Costa | bay | 375540N | 1221224W | - | Briones Valley |
| Deer Creek | Contra Costa | stream | 375610N | 1214229W | - | Brentwood |
| Deer Creek 1007-003 Dam | Contra Costa | dam | 375530N | 1214530W | - | Antioch South |
| Deer Flat | Contra Costa | flat | 375319N | 1215555W | - | Clayton |
| Deer Flat Creek | Contra Costa | stream | 375431N | 1215654W | - | Clayton |
| Deer Valley | Contra Costa | valley | 375512N | 1214639W | - | Antioch South |
| Delta Air Park | Contra Costa | airport | 375914N | 1213933W | 7 | Brentwood |
| Devils Pulpit | Contra Costa | other | 375249N | 1215427W | - | Clayton |
| Devils Slide | Contra Costa | valley | 375031N | 1215457W | - | Diablo |
| Dewing Park | Contra Costa | pop place | 375306N | 1220430W | 420 | Walnut Creek |
| Diablo | Contra Costa | pop place | 375006N | 1215725W | 560 | Diablo |
| Diablo Shadows Park | Contra Costa | park | 375515N | 1220028W | - | Walnut Creek |
| Diamond | Contra Costa | pop place | 380118N | 1215332W | 40 | Honker Bay |
| Dinosaur Hill Park | Contra Costa | park | 375610N | 1220515W | - | Walnut Creek |
| Discovery Bay | Contra Costa | pop place | 375431N | 1213557W | 10 | Woodward Island |
| Dock | Contra Costa | locale | 380212N | 1221026W | - | Benicia |
| Don Fernando Pacheco Adobe (historic landmark #455) (1843) | Contra Costa | building | n/a | n/a | - | n/a |
| Don Salvio Adobe (historic landmark #515) (June 24, 1835) | Contra Costa | building | n/a | n/a | - | n/a |
| Donner Canyon | Contra Costa | valley | 375521N | 1215531W | - | Clayton |
| Donner Creek | Contra Costa | stream | 375610N | 1215539W | - | Clayton |
| Doolan Canyon | Contra Costa | valley | 374526N | 1214920W | - | Tassajara |
| Doolin Canyon | Contra Costa | valley | 374526N | 1214920W | - | Tassajara |
| Dougherty Hills | Contra Costa | range | 374454N | 1215525W | - | Dublin |
| Dorenda (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Dowest Slough | Contra Costa | bay | 380130N | 1215035W | - | Antioch North |
| Drakes Bay | Contra Costa | bay | 375312N | 1222136W | - | Richmond |
Section: 4 of
| Feature Name | County | Type | Latitude | Longitude | Alt | USGS 7.5' Map |
| Driftwood Marina | Contra Costa | locale | 380105N | 1214455W | - | Jersey Island |
| Drunken Indian | Contra Costa | pop place | 375841N | 1220148W | 80 | Walnut Creek |
| Dry Creek | Contra Costa | stream | 375522N | 1214240W | - | Brentwood |
| Dry Creek | Contra Costa | stream | 375610N | 1214229W | - | Brentwood |
| Dry Creek 1007-004 Dam | Contra Costa | dam | 375442N | 1214400W | - | Brentwood |
| Dutch Slough | Contra Costa | gut | 380044N | 1214022W | - | Jersey Island |
| Dutch Slough Gas Field | Contra Costa | oilfield | 375940N | 1213902W | - | Brentwood |
| Eagle Peak | Contra Costa | summit | 375406N | 1215612W | 2369 | Clayton |
| Eagle Point | Contra Costa | summit | 375406N | 1215612W | 2369 | Clayton |
| East Antioch (Historical) | Contra Costa | pop place | 380018N | 1214817W | 40 | Antioch North |
| East Branch Green Valley Creek | Contra Costa | stream | 375007N | 1215842W | - | Diablo |
| East Brother Lighthouse (1874) | Contra Costa | locale | 375748N | 1222557W | - | San Quentin |
| East Fork Sycamore Creek | Contra Costa | stream | 375031N | 1215456W | - | Diablo |
| East Reach | Contra Costa | channel | 380253N | 1215137W | - | Antioch North |
| East Richmond | Contra Costa | pop place | 375637N | 1221851W | 290 | Richmond |
| East Richmond Heights | Contra Costa | pop place | 375642N | 1221845W | - | Richmond |
| East Shore Park | Contra Costa | park | 375508N | 1221924W | - | Richmond |
| Easter Hill Village (subdivision) | Contra Costa | pop place | 375525N | 1222036W | 40 | Richmond |
| Eastport | Contra Costa | pop place | 375023N | 1221046W | 760 | Oakland East |
| Eastyard Post Office (Est. April 16, 1901) (name changed June 25, 1902) | Contra Costa | post office | 375538N | 1222303W | - | San Quentin |
| Eckley | Contra Costa | pop place | 380314N | 1221206W | 20 | Benicia |
| Edith Point | Contra Costa | cape | 380313N | 1220408W | - | Vine Hill |
| El Cerrito | Contra Costa | pop place | 375457N | 1221838W | 66 | Richmond |
| El Cerrito Post Office (Est. Feb. 29, 1909) (name changed Aug. 26, 1916) | Contra Costa | post office | 375512N | 1221851W | - | Richmond |
| El Cierbo | Contra Costa | pop place | 380302N | 1221453W | 20 | Benicia |
| El Divisadero Park | Contra Costa | park | 375447N | 1220152W | - | Walnut Creek |
| El Sobrante | Contra Costa | civil | 375700N | 1221622W | - | Richmond |
| El Sobrante | Contra Costa | pop place | 375838N | 1221739W | 160 | Richmond |
| El Sobrante Post Office (Est. June 2, 1941) | Contra Costa | post office | 375840N | 1221740W | - | Richmond |
| El Sobrante Reservoir | Contra Costa | reservoir | 375900N | 1221724W | - | Richmond |
| Ellis Lake Park | Contra Costa | park | 375820N | 1220212W | - | Walnut Creek |
| Ellis Slough | Contra Costa | channel | 375515N | 1222210W | - | Richmond |
| Elm Park | Contra Costa | park | 375627N | 1222140W | - | Richmond |
| Emmons Canyon | Contra Costa | valley | 375118N | 1215840W | - | Diablo |
| Empire (historical) | Contra Costa | pop place | 380013N | 1214850W | 50 | Antioch North |
| Estrecho De San Pablo | Contra Costa | channel | 375837N | 1222615W | - | San Quentin |
| Eucalyptus Island | Contra Costa | island | 375135N | 1213411W | - | Clifton Court Forebay |
| Eugene O'Neil National Historic Site | Contra Costa | park | 374934N | 1220134W | - | Las Trampas Ridge |
| Eugene Spring | Contra Costa | spring | 374336N | 1215750W | - | Dublin |
| Eureka Peak | Contra Costa | summit | 375245N | 1221241W | 1640 | Briones Valley |
| Excelsior School (historical) | Contra Costa | school | 375348N | 1213826W | 25 | Brentwood |
| Fairmead Park | Contra Costa | park | 375812N | 1221944W | - | Richmond |
| Fairmede Park | Contra Costa | park | 375812N | 1221944W | - | Richmond |
| Fairmont (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Fairmont Park | Contra Costa | park | 375427N | 1221809W | - | Richmond |
| Fairmount Station El Cerrito Post Office (Est. Sept. 1, 1947) | Contra Costa | post office | 375402N | 1221803W | - | Richmond |
| Fairoaks Park | Contra Costa | park | 375637N | 1220258W | - | Walnut Creek |
| Fairview Park | Contra Costa | park | 380040N | 1214929W | - | Antioch North |
| False River | Contra Costa | gut | 380319N | 1213840W | - | Jersey Island |
| Fernandez Park | Contra Costa | park | 380027N | 1221725W | - | Mare Island |
| Ferry Point (Historical) | Contra Costa | cape | 375435N | 1222322W | - | San Quentin |
| First Methodist Church (historical) | Contra Costa | church | 380129N | 1215251W | - | Honker Bay |
| Fishermans Slough | Contra Costa | gut | 380458N | 1213754W | - | Jersey Island |
| Fishermans Slough (historical) | Contra Costa | swamp | 380450N | 1213810W | - | Jersey Island |
| Fossil Ridge | Contra Costa | ridge | 375048N | 1215543W | - | Diablo |
| Four Corners | Contra Costa | pop place | 375723N | 1220218W | 45 | Walnut Creek |
| Foxboro Park | Contra Costa | park | 380053N | 1221531W | - | Mare Island |
| Frank Salfingere Park | Contra Costa | park | 375744N | 1220400W | - | Walnut Creek |
| Franklin Canyon | Contra Costa | valley | 375950N | 1220904W | - | Briones Valley |
| Franklin Creek | Contra Costa | stream | 375946N | 1220751W | - | Briones Valley |
| Franklin Ridge | Contra Costa | ridge | 380015N | 1221033W | - | Benicia |
| Franks Tract | Contra Costa | park | 380256N | 1213812W | - | Jersey Island |
| Franks Tract | Contra Costa | swamp | 380300N | 1213900W | - | Jersey Island |
| Freshwater Bay | Contra Costa | bay | 380429N | 1220340W | - | Vine Hill |
| Frog Pond | Contra Costa | lake | 375157N | 1215348W | - | Diablo |
| Frowning Ridge | Contra Costa | ridge | 375247N | 1221330W | - | Briones Valley |
| Galindo (Historical) | Contra Costa | pop place | n/a | n/a | - | Walnut Creek |
| Galindo Creek | Contra Costa | stream | 375801N | 1220232W | - | Walnut Creek |
| Garrity Creek | Contra Costa | stream | 380011N | 1221939W | - | Mare Island |
| Gateley | Contra Costa | pop place | 380026N | 1221832W | 60 | Mare Island |
| Gehringer Park | Contra Costa | park | 375908N | 1215935W | - | Clayton |
| Gentrytown Park | Contra Costa | park | 375940N | 1214955W | - | Antioch South |
| George Miller Junior Memorial Regional Shoreline | Contra Costa | park | 375457N | 1222305W | - | San Quentin |
| George Whittell Marsh | Contra Costa | swamp | 380025N | 1222120W | - | Mare Island |
| Giant | Contra Costa | pop place | 375926N | 1222122W | 20 | Richmond |
| Gino Marchetti Park | Contra Costa | park | 380003N | 1215053W | - | Antioch North |
| Glen Frazer | Contra Costa | pop place | 375954N | 1220942W | 300 | Briones Valley |
| Glorietta | Contra Costa | pop place | 375144N | 1221001W | 600 | Oakland East |
| Goetheis Canyon | Contra Costa | valley | 375518N | 1215340W | - | Clayton |
| Golden Hills Park | Contra Costa | park | 375742N | 1220631W | - | Walnut Creek |
| Golden State Model Railroad Museum | Contra Costa | building | 375503N | 1222300W | - | San Quentin |
| Grayson Creek | Contra Costa | stream | 380016N | 1220337W | - | Vine Hill |
| Green Valley | Contra Costa | valley | 375007N | 1215842W | - | Diablo |
| Green Valley Creek | Contra Costa | stream | 374925N | 1215951W | - | Diablo |
| Greenspot (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Grizzly Creek | Contra Costa | stream | 375211N | 1220545W | - | Las Trampas Ridge |
| Grizzly Peak | Contra Costa | summit | 375256N | 1221357W | 1740 | Briones Valley |
| Gudde Ridge | Contra Costa | ridge | 375049N | 1221013W | - | Oakland East |
| Hacienda De Las Flores Park | Contra Costa | park | 375108N | 1220729W | - | Las Trampas Ridge |
| Hambre Valley | Contra Costa | valley | 380043N | 1220742W | - | Benicia |
| Hammer Island | Contra Costa | island | 374859N | 1213321W | - | Clifton Court Forebay |
| Happy Valley | Contra Costa | valley | 375355N | 1220733W | - | Briones Valley |
| Harbor Channel | Contra Costa | channel | 375447N | 1222146W | - | Richmond |
| Harbour Park | Contra Costa | park | 375927N | 1214734W | - | Antioch South |
| Harding Park | Contra Costa | park | 375407N | 1221735W | - | Richmond |
| Harlan Hill | Contra Costa | summit | 374411N | 1215854W | 1719 | Dublin |
| Harwood Creek | Contra Costa | stream | 375138N | 1221428W | - | Briones Valley |
| Hastings Slough | Contra Costa | stream | 380305N | 1220319W | - | Vine Hill |
| Hayden Park | Contra Costa | park | 375907N | 1220407W | - | Walnut Creek |
| Havens (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
Section: 5 of
| Feature Name | County | Type | Latitude | Longitude | Alt | USGS 7.5' Map |
| Heather Farms Park | Contra Costa | park | 375508N | 1220230W | - | Walnut Creek |
| Hemme Hills | Contra Costa | range | 374908N | 1215536W | 1103 | Diablo |
| Hercules | Contra Costa | pop place | 380102N | 1221715W | 60 | Mare Island |
| Hercules Pier | Contra Costa | locale | 380122N | 1221729W | - | Mare Island |
| Hercules Post Office (Est. March 19, 1914) | Contra Costa | post office | 380035N | 1221601W | - | Mare Island |
| Hercules Wharf | Contra Costa | locale | 380122N | 1221729W | - | Mare Island |
| Herpoco | Contra Costa | pop place | 380042N | 1221612W | 60 | Mare Island |
| Hidden Pond | Contra Costa | lake | 375143N | 1215432W | - | Diablo |
| Hidden Valley Park | Contra Costa | park | 375858N | 1220526W | - | Walnut Creek |
| Highlands Park | Contra Costa | park | 375947N | 1215250W | - | Clayton |
| Highlands Park | Contra Costa | park | 375635N | 1215723W | - | Clayton |
| Hillcrest Community Park | Contra Costa | park | 375952N | 1220240W | - | Walnut Creek |
| Hillcrest Park | Contra Costa | park | 375925N | 1214623W | - | Antioch South |
| Hilltop Lake Park | Contra Costa | park | 375907N | 1221937W | - | Richmond |
| Hilltop Park | Contra Costa | park | 375833N | 1222004W | - | Richmond |
| Hilltop Park | Contra Costa | park | 375850N | 1221837W | - | Richmond |
| Hog Canyon | Contra Costa | valley | 375311N | 1214841W | - | Antioch South |
| Holiday Highlands Park | Contra Costa | park | 375943N | 1220542W | - | Walnut Creek |
| Holland Tract | Contra Costa | civil | 375955N | 1213604W | - | Woodward Island |
| Holly Cross Cemetery | Contra Costa | cemetery | 380021N | 1214624W | - | Antioch North |
| Hookston | Contra Costa | pop place | 375629N | 1220306W | 65 | Walnut Creek |
| Hooper (historical) | Contra Costa | pop place | 380111N | 1215101W | 20 | Antioch North |
| Horse Valley | Contra Costa | valley | 375631N | 1214611W | - | Antioch South |
| Howe Homestead Park | Contra Costa | park | 375359N | 1220250W | - | Walnut Creek |
| Huber Park | Contra Costa | park | 375450N | 1221724W | - | Richmond |
| Hungry Valley | Contra Costa | valley | 380043N | 1220742W | - | Benicia |
| Ignasio Valley | Contra Costa | valley | 375408N | 1215939W | - | Clayton |
| Il Pinole | Contra Costa | civil | 375926N | 1221356W | - | Briones Valley |
| Il Pinole | Contra Costa | pop place | 380016N | 1221752W | 21 | Mare Island |
| Il Pinole Point | Contra Costa | cape | 380044N | 1222156W | - | Mare Island |
| Indian Creek | Contra Costa | stream | 374905N | 1220841W | - | Oakland East |
| Indian Slough | Contra Costa | gut | 375505N | 1213453W | - | Woodward Island |
| Inner Harbor Basin | Contra Costa | harbor | 375440N | 1222100W | - | Richmond |
| Inspiration Point | Contra Costa | cape | 375421N | 1221415W | - | Briones Valley |
| Invincible Rock | Contra Costa | bar | 375721N | 1222618W | - | San Quentin |
| Irish Canyon | Contra Costa | valley | 375635N | 1215558W | - | Clayton |
| Iron House School (historical) | Contra Costa | school | 375927N | 1214036W | 10 | Brentwood |
| Isla Del Carmen | Contra Costa | island | 375347N | 1222115W | 159 | Richmond |
| Isabel Point | Contra Costa | cape | 375350N | 1221924W | - | Richmond |
| Italian Slough | Contra Costa | gut | 375059N | 1213500W | - | Clifton Court Forebay |
| Izabel Point | Contra Costa | cape | 375350N | 1221924W | - | Richmond |
| J F Baldwin Park | Contra Costa | park | 375903N | 1220145W | - | Walnut Creek |
| J F Kennedy Park | Contra Costa | park | 375537N | 1221949W | - | Richmond |
| Jackass Point | Contra Costa | cape | 380251N | 1213910W | - | Jersey Island |
| Jay and Barbara Vincent Park | Contra Costa | park | 375430N | 1222100W | - | Richmond |
| Jersey (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| Jersey Headquarters Landing | Contra Costa | locale | 380242N | 1214128W | - | Jersey Island |
| Jersey Island | Contra Costa | island | 380211N | 1214105W | - | Jersey Island |
| Jersey Point | Contra Costa | cape | 380307N | 1214115W | - | Jersey Island |
| Jewel Lake | Contra Costa | reservoir | 375446N | 1221607W | - | Richmond |
| Joaquin Moraga Adobe (historic landmark #509) (1841) | Contra Costa | building | n/a | n/a | - | n/a |
| John Hubert Davis Park | Contra Costa | park | 375742N | 1222100W | - | Richmond |
| John Muir Home (historic landmark #312) | Contra Costa | building | n/a | n/a | - | n/a |
| John Muir National Historic Site (historic landmark #312) | Contra Costa | park | 375929N | 1220756W | - | Briones Valley |
| John Muir School (historical) (1924) | Contra Costa | school | 380052N | 1214849W | - | Antioch North |
| John T Knox Shoreline | Contra Costa | park | 375458N | 1222314W | - | San Quentin |
| Johnson Ranch | Contra Costa | locale | 374835N | 1213755W | 131 | Byron Hot Springs |
| Junction Camp | Contra Costa | locale | 375158N | 1215553W | - | Diablo |
| Juniper Camp | Contra Costa | locale | 375239N | 1215546W | - | Clayton |
| KALX-FM (Berkeley) | Contra Costa | tower | 375240N | 1221444W | - | Briones Valley |
| KECG-FM (El Cerrito) | Contra Costa | tower | 375430N | 1221739W | - | Richmond |
| KFCB-TV (Concord) | Contra Costa | tower | 375334N | 1215353W | - | Clayton |
| KFTL-TV (Stockton) | Contra Costa | tower | 375335N | 1215358W | - | Clayton |
| KKISFM-FM (Walnut Creek) | Contra Costa | tower | 375827N | 1215544W | - | Clayton |
| KKISFM-FM (Walnut Creek) | Contra Costa | tower | 375359N | 1220538W | - | Walnut Creek |
| KNEW-AM (Oakland) | Contra Costa | tower | 375342N | 1221929W | - | Richmond |
| KSMC-FM (Moraga) | Contra Costa | tower | 375025N | 1220636W | - | Las Trampas Ridge |
| KSTN-FM (Stockton) | Contra Costa | tower | 374917N | 1214649W | - | Tassajara |
| KVHS-FM (Concord) | Contra Costa | tower | 380149N | 1220004W | - | Vine Hill |
| KWUN-AM (Concord) | Contra Costa | tower | 375745N | 1215643W | - | Clayton |
| Kaiser Creek | Contra Costa | stream | 374715N | 1220405W | - | Las Trampas Ridge |
| Karquenas Bay | Contra Costa | bay | 380500N | 1221500W | - | Mare Island |
| Karquenas Point | Contra Costa | locale | 380223N | 1221030W | - | Benicia |
| Karquines Bay | Contra Costa | bay | 380500N | 1221500W | - | Mare Island |
| Karquines Point | Contra Costa | locale | 380223N | 1221030W | - | Benicia |
| Keller Ridge | Contra Costa | ridge | 375541N | 1215320W | - | Clayton |
| Kellers Beach | Contra Costa | beach | 375515N | 1222308W | - | San Quentin |
| Kellers Beach Park | Contra Costa | park | 375515N | 1222308W | - | San Quentin |
| Kellogg Creek | Contra Costa | stream | 375425N | 1213630W | - | Woodward Island |
| Kennedy Grove Regional Recreation Area | Contra Costa | park | 375651N | 1221535W | - | Richmond |
| Kensington | Contra Costa | pop place | 375438N | 1221645W | 600 | Richmond |
| Kilgore (Historical) | Contra Costa | pop place | n/a | n/a | - | n/a |
| King Canyon | Contra Costa | valley | 374741N | 1220711W | - | Las Trampas Ridge |
| Kings Island | Contra Costa | island | 375129N | 1213404W | - | Clifton Court Forebay |
| Kirker Creek | Contra Costa | stream | 380133N | 1215033W | - | Antioch North |
| Kirker Pass | Contra Costa | gap | 375740N | 1215516W | - | Clayton |
| Kirkers Pass | Contra Costa | gap | 375740N | 1215516W | - | Clayton |
| Kirkwood Park | Contra Costa | park | 375713N | 1215651W | - | Clayton |
| Knightsen | Contra Costa | pop place | 375808N | 1214001W | 25 | Brentwood |
| Knightsen Post Office (Est. Nov. 22, 1900) | Contra Costa | post office | 375809N | 1213954W | - | Brentwood |
| Knightsen Station | Contra Costa | pop place | 375808N | 1214001W | 25 | Brentwood |
| Knob Point | Contra Costa | summit | 375041N | 1215403W | 1920 | Diablo |
| Koopman Canyon | Contra Costa | valley | 374253N | 1215620W | - | Dublin |
| La Boca De Las Cañada Del Pinole | Contra Costa | civil | 375633N | 1220957W | - | La Boca De Las Cañada Del Pinole |
| La Boca Del Puerto De San Francisco | Contra Costa | bay | 375312N | 1222136W | - | Richmond |
| La Moine Valley View Park | Contra Costa | park | 375820N | 1221654W | - | Richmond |
| La Vista Park | Contra Costa | park | 374938N | 1220015W | - | Las Trampas Ridge |
| Lafayette | Contra Costa | pop place | 375309N | 1220701W | 302 | Walnut Creek |
| Lafayette 31-002 Dam | Contra Costa | dam | 375306N | 1220818W | - | Briones Valley |
| Lafayette Cemetery | Contra Costa | cemetery | 375347N | 1220555W | - | Walnut Creek |
Copyright © Calsign 2001