San Mateo County, California Nativity & Citizenship Status (2024)

Place of birth and citizenship status analysis for San Mateo County, California

Demographics Overview

Race & Ethnicity

Household Income

Nativity & Citizenship

Health Insurance

Class of Worker

San Mateo County, California Nativity & Citizenship Indicators (2024)

Native Born

64.3%

Foreign Born

35.7%

Naturalized

20.8%

US Citizens

85.1%

San Mateo County, California Nativity & Citizenship Distribution

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

San Mateo County, California Historical Nativity Trends (2010–2024)

Historical nativity trends for — Figure 2: Evolution of nativity categories and total population volume from 2010 to 2024.

San Mateo County, California Population & Nativity History

**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	742,340	35.7%	64.3%
2023	745,100	35.6%	64.4%
2022	754,250	35.2%	64.8%
2021	762,488	35.1%	64.9%
2020	765,623	35.0%	65.0%
2019	767,423	34.8%	65.2%
2018	765,935	34.8%	65.2%
2017	763,450	34.7%	65.3%
2016	754,748	34.5%	65.5%
2015	748,731	34.6%	65.4%
2014	739,837	34.4%	65.6%
2013	729,543	34.0%	66.0%
2012	721,183	34.2%	65.8%
2011	711,622	34.1%	65.9%
2010	704,327	34.0%	66.0%

Nativity & Citizenship FAQs for San Mateo County, California

Approximately 35.7% of residents in San Mateo County, California were born outside the United States.

The vast majority of residents, roughly 85.1%, are U.S. citizens (including both native-born and naturalized citizens).

Compare Nativity Across Other Locations