**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	503,175	10.1%	89.9%
2023	497,441	10.0%	90.0%
2022	493,378	9.7%	90.3%
2021	488,871	9.4%	90.6%
2020	485,418	9.1%	90.9%
2019	479,612	9.1%	90.9%
2018	474,274	9.0%	91.0%
2017	467,235	8.9%	91.1%
2016	459,159	8.7%	91.3%
2015	452,369	8.7%	91.3%
2014	445,136	8.6%	91.4%
2013	438,307	8.5%	91.5%
2012	431,811	8.1%	91.9%
2011	425,582	8.1%	91.9%
2010	419,301	7.8%	92.2%

Nativity & Citizenship FAQs for Polk County, Iowa

Approximately 10.1% of residents in Polk County, Iowa were born outside the United States.

The vast majority of residents, roughly 94.6%, are U.S. citizens (including both native-born and naturalized citizens).

Polk County, Iowa Nativity & Citizenship Status (2024)