Contra Costa County, California Nativity & Citizenship Indicators (2024)

Native Born

73.4%

Foreign Born

26.6%

Naturalized

15.6%

US Citizens

89.0%

Contra Costa County, California Nativity & Citizenship Distribution

Nativity Treemap for
Figure 1: Proportional distribution of population by place of birth in .


Contra Costa County, California Population & Nativity History

Table 1: Comparison of total population and nativity percentages over time.
YearTotal PopForeign BornNative Born
20241,165,01226.6%73.4%
20231,161,45826.2%73.8%
20221,162,64825.4%74.6%
20211,161,64325.0%75.0%
20201,147,78824.8%75.2%
20191,142,25125.4%74.6%
20181,133,24725.0%75.0%
20171,123,67824.7%75.3%
20161,107,92524.4%75.6%
20151,096,06823.9%76.1%
20141,081,23223.6%76.4%
20131,065,79423.5%76.5%
20121,052,04723.6%76.4%
20111,037,81723.6%76.4%
20101,024,80923.6%76.4%

Nativity & Citizenship FAQs for Contra Costa County, California

Approximately 26.6% of residents in Contra Costa County, California were born outside the United States.

The vast majority of residents, roughly 89.0%, are U.S. citizens (including both native-born and naturalized citizens).

Compare Nativity Across Other Locations