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Place:
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United States
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California
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Contra Costa County
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Contra Costa County
,
California
,
United States
Overview
Map
Cities
Cemeteries
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Tip: To see additional information about Contra Costa County, click on the "tabs" directly above.
Overview of Contra Costa County
Name:
Contra Costa County
Place Type:
County
Located In:
California
,
United States
History (GNIS):
Established 18 February 1850
County Seat:
Martinez
Coordinates:
Latitude:
37.9332565
37° 55' 59.7"
N
Longitude:
-121.9344036
121° 56' 03.9"
W
Population:
803,732
Elevation:
152 m
Surrounding Counties:
Sacramento
NE
San Joaquin
E
Alameda
S
San Francisco
W
Marin
W
Sonoma
NW
Solano
N
Histopolis Place ID:
530417360
Updated May 5, 2020