| Year | Population |
|---|---|
| 2000. | 948816 |
| 2010. | 1049020 |
| 1980. | 650748 |
| 1990. | 803732 |
www.co.contra-costa.ca.us
California
Contra Costa County
County
06013
County seat is in Martinez
Founded in 1850
Area: 720 square miles
County board has 5 members
FIPS code: 06013
Zipcodes in Contra Costa County: 94547, 94549, 94548, 94850, 94597, 94598, 94518, 94519, 94516, 94517, 94514, 94513, 94511, 94553, 94556, 94583, 94808, 94801, 94802, 94803, 94804, 94805, 94806, 94807, 94529, 94528, 94523, 94522, 94521, 94520, 94527, 94526, 94525, 94524, 94595, 94569, 94565, 94564, 94563, 94561, 94530, 94531, 94570, 94572, 94575, 94820, 94582, 94596, 94509, 94507, 94506
Gioia John
Glover Federal
Kochly Robert
Kramer Gus
Mitchoff Karen
No associations
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