There are 105 cities in Contra Costa County, California.

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City
Rank
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Concord1119,201125,256-1.42%3,90130.56
Antioch2115,864115,2510.26%3,94829.35
Richmond3111,441116,367-1.27%3,70830.05
San Ramon483,81386,616-1.26%4,48518.69
Pittsburg579,39276,6051.16%4,50117.64
Brentwood668,51964,4631.78%4,61114.86
Walnut Creek767,18170,039-1.31%3,40019.76
Oakley846,42243,4681.9%2,92615.86
Danville941,60843,527-1.33%2,30218.08
Martinez1035,59937,187-1.18%2,81812.63
Pleasant Hill1132,93134,600-1.47%4,6557.07
San Pablo1230,47332,078-1.48%11,5872.63
Aberdeen1328,04028,431-0.3%1,74816.04
Jamestown1427,70328,672-0.97%3,1018.93
Hercules1525,53226,009-0.75%3,9836.41
El Cerrito1624,99325,967-1.17%6,8343.66
Lafayette1724,67225,371-0.75%1,64015.04
Bay Point1824,40725,378 3,7836.45
Orinda1919,05919,516-0.77%1,48312.85
Pinole2018,03019,003-1.51%3,5335.10
Moraga2116,45316,868-0.77%1,7389.46
Discovery Bay2215,36215,904 4,0693.77
Alamo2314,35513,864 1,4849.67
Dunkirk2412,34712,733-0.87%2,7414.50
Riverton2510,80410,6770.13%1,04610.32
Clayton2610,74211,062-0.75%2,7973.84
Blackhawk2710,62210,590 1,8335.80
Hailey289,9109,2031.36%2,5203.93
Fredonia299,4629,658-0.49%1,8235.19
Rodeo309,33410,023 2,4943.74
Lander317,5937,5430.08%8099.38
Camino Tassajara326,2385,870 4,8931.27
Saranap336,1366,027 5,4111.13
El Cerrito345,3285,269 2,0562.59
Kensington355,3095,171 5,6060.95
Tara Hills365,2024,915 7,8230.67
Pacheco375,0414,775 6,8030.74
San Miguel384,0043,253 3,8131.05
North Richmond393,7344,258 2,6861.39
Crockett403,5743,205 3,3651.06
Ketchum413,5073,558-0.65%1,0943.21
Rollingwood423,4833,612 20,4880.17
East Richmond Heights433,2853,473 5,6640.58
Vine Hill443,2173,228 2,1381.50
Reliez Valley453,1903,321 1,3512.36
Lakewood462,9382,997-0.57%1,4871.98
Westfield472,9282,998-0.37%7663.82
San Miguel482,7562,536 1,6401.68
Bellevue492,6282,5640.57%1,7851.47
Jamestown West502,5872,421 1,0282.52
Silver Creek512,5622,645-0.89%2,2091.16
Falconer522,2262,293-0.8%2,0371.09
Montalvin Manor532,1952,490 6,8380.32
Bethel Island541,9932,015 3795.25
L'Anse551,9221,906-0.26%7552.55
Byron561,9182,057 2946.52
Baraga571,9121,899-0.16%8992.13
Frewsburg581,8911,719 5663.34
Sun Valley591,7541,792-0.96%1839.56
Knightsen601,6461,100 1978.36
Arapahoe611,5961,701 5827.64
Fort Washakie621,4811,732 7120.89
Ethete631,4711,644 4532.51
Mayville641,4261,457-1.99%7161.99
Groton651,3701,382-0.22%7821.75
Brocton661,3111,340-0.61%7581.73
Celoron671,0501,079-0.76%1,4060.75
Shell Ridge681,0411,081 2,4210.43
Castle Hill691,0101,164 1,3890.73
Ripley70964838 7031.37
Acalanes Ridge71961875 2,0850.46
Dubois729599071.48%2763.48
Norris Canyon73954790 2583.70
Alhambra Valley749171,051 6851.34
North Gate75900740 1,3680.66
Diablo76772834 5691.36
Clyde77721737 5,0420.14
Sherman78665683-0.89%7610.87
Carey79652688-1.81%1893.45
Cassadaga80560571-0.53%6670.84
Sinclairville81556577-1.24%3451.61
Boulder Flats82513342 2818.18
Shoshoni834974700.61%1393.58
Poland84476485-0.63%8770.54
Warner85468481-0.64%1,6770.28
Panama86456468-0.65%2072.20
Hudson87437435 1,0260.43
Zeba88382386 1063.61
Sunset Bay89366429 5520.66
Bemus Point90304312-0.65%6970.44
Chautauqua91271303 6350.43
Busti92260223 1152.26
Port Costa93251242 1,5890.16
Pavillion942322250.87%1,1540.20
Johnstown95231221 731.56
Kennedy96222261 1092.04
Frederick97205212-0.97%5280.39
Hecla98191195-0.52%5550.34
Crowheart99174128 631.45
Columbia100153157-1.29%1011.52
Claremont101108110-0.92%4300.25
Westport1028687 3660.23
Stratford1035759-1.72%2280.25
Bath10456217 1920.29
Verdon10555 200.25
showing: 105 rows

Cities in Contra Costa County, California by Population (2024)

What is the largest city in Contra Costa County, California?

Concord is the largest city in Contra Costa County.

What is the smallest city in Contra Costa County, California?

Verdon is the smallest city in Contra Costa County.

How many cities are in Contra Costa County?

There are 105 cities in Contra Costa County, California.

Frequently Asked Questions