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County · California

Contra Costa County

1,172,607Population
0.6 %Change since 2020
-798Net migration
4.8 %Unemployment rate

Facts

Population
1,172,607 (2024)
Change since 2020
0.6 %
Net migration
-798 (2023)
Unemployment rate
4.8 % (2025)
Population base, April 2020
1,165,983 (2020)
Births
11,331 (2023)
Births per 1,000 residents, 2023
9.7
Deaths
8,793 (2023)
Deaths per 1,000 residents, 2023
7.5
Natural change, 2023
2,538
International migration
10,004 (2023)
Domestic migration
-10,802 (2023)
Net migration per 1,000, 2023
-0.7
Postal code
CA
FIPS code
06013

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020254.84.0
PeriodValue
20254.8 %
20244.5 %
20233.9 %
20223.4 %
20216.1 %
20208.7 %
20193.0 %
20183.1 %
20173.7 %
20164.4 %
20155.0 %
20146.3 %

Population estimates, 2020–2024

202020241.2M1.2M
PeriodValue
20241,172,607
20231,162,179
20221,160,296
20211,163,813
20201,166,165