Cities & Towns in Contra Costa County, CA

Contra Costa County, county in California, United States. As of 2020 county had an estimated population of 1,152,333 inhabitants. The county was created 172 years ago in 1850. Its county seat is "Martinez".

There are 33 city/town in Contra Costa County, CA. The largest city of Contra Costa County is Concord with a population of 128,544. Other cities include, Antioch population 111,605, Richmond population 110,038, San Ramon population 82,865, Pittsburg population 72,622

Concord
Concord

Concord, capital city of state of New Hampshire, United States; county seat of Merrimack County, New Hampshire

Antioch
Antioch

Antioch, city in California, United States of America

Richmond
Richmond

Richmond, city in Contra Costa County, California, United States

All Contra Costa County Cities (Aphebetical)

Cities, Towns, Neighborhoods & Other Populated Places in Contra Costa County.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z all
City Name Title County Population
Alamo Census designated place in California, United States Contra Costa 14,570
Antioch City in California, United States of America Contra Costa 111,605
Bay Point Census designated place in California Contra Costa 21,534
Bethel Island Census-designated place in Contra Costa County, California Contra Costa 2,137
Brentwood City in California, United States Contra Costa 65,017
Clayton City in California, United States Contra Costa 11,527
Concord Capital city of state of New Hampshire, United States; county seat of Merrimack County, New Hampshire Contra Costa 128,544
Danville Town in Contra Costa County, California Contra Costa 44,883
Diablo CDP in Contra Costa County, California Contra Costa 1,158
Discovery Bay Census-designated place in Contra Costa County, California Contra Costa 13,352
East Richmond Heights Place in California, United States of America Contra Costa 3,280
El Cerrito City in Contra Costa County, California, United States Contra Costa 25,403
El Sobrante CDP in Contra Costa County, California, United States Contra Costa 12,669
Hercules City in western Contra Costa County, California Contra Costa 26,221
Lafayette City in California Contra Costa 25,992
Martinez City in Contra Costa County, California, USA Contra Costa 38,027
Moraga Town in Contra Costa County, California, United States Contra Costa 16,967
Mountain View Community in Contra Costa County, California Contra Costa 2,372
Oakley City in California Contra Costa 42,710
Orinda City in California, USA Contra Costa 19,557
Pacheco Census-designated place in Contra Costa County, California Contra Costa 3,685
Pinole City in California Contra Costa 19,207
Pittsburg City in California Contra Costa 72,622
Pleasant Hill City in Contra Costa County, California, USA Contra Costa 34,781
Richmond City in Contra Costa County, California, United States Contra Costa 110,038
Rodeo Census-designated place in Contra Costa County, California Contra Costa 8,679
Rollingwood City in Contra Costa County, California, United States Contra Costa 2,969
San Pablo City in Contra Costa County, California, United States Contra Costa 30,779
San Ramon City in California, United States Contra Costa 82,865
Tara Hills Census-designated place in Contra Costa County, California Contra Costa 5,126
Vine Hill Census-designated place in Contra Costa County, California Contra Costa 3,761
Waldon Census-designated place in Contra Costa County, California Contra Costa 5,364
Walnut Creek City in Contra Costa County, California, USA Contra Costa 69,936
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