Resident Population in Contra Costa County, CA

Resident Population in Contra Costa County, CA was 1172.60700 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Contra Costa County, CA reached a record high of 1172.60700 in January of 2024 and a record low of 556.11600 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Contra Costa County, CA - last updated from the United States Federal Reserve on April of 2026.



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