**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	672,688	16.2%	83.8%
2023	643,889	14.9%	85.1%
2022	617,396	14.4%	85.6%
2021	591,759	13.6%	86.4%
2020	570,437	13.0%	87.0%
2019	547,604	12.6%	87.4%
2018	527,057	12.2%	87.8%
2017	508,313	11.8%	88.2%
2016	490,619	11.5%	88.5%
2015	473,592	11.3%	88.7%
2014	457,218	11.3%	88.7%
2013	441,445	10.9%	89.1%
2012	426,296	10.7%	89.3%
2011	409,913	10.4%	89.6%
2010	391,715	10.3%	89.7%

Nativity & Citizenship FAQs for Williamson County, Texas

Approximately 16.2% of residents in Williamson County, Texas were born outside the United States.

The vast majority of residents, roughly 91.2%, are U.S. citizens (including both native-born and naturalized citizens).

Williamson County, Texas Nativity & Citizenship Status (2024)