**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	485,040	16.8%	83.2%
2023	485,642	16.6%	83.4%
2022	488,436	16.3%	83.7%
2021	492,498	16.3%	83.7%
2020	496,801	16.6%	83.4%
2019	499,772	16.4%	83.6%
2018	501,317	16.5%	83.5%
2017	500,943	16.6%	83.4%
2016	497,776	16.8%	83.2%
2015	495,078	16.6%	83.4%
2014	491,790	16.5%	83.5%
2013	487,469	16.6%	83.4%
2012	483,456	16.5%	83.5%
2011	478,551	16.4%	83.6%
2010	474,047	16.6%	83.4%

Nativity & Citizenship FAQs for Sonoma County, California

Approximately 16.8% of residents in Sonoma County, California were born outside the United States.

The vast majority of residents, roughly 91.3%, are U.S. citizens (including both native-born and naturalized citizens).

Sonoma County, California Nativity & Citizenship Status (2024)