**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	40,114	14.6%	85.4%
2023	39,971	14.0%	86.0%
2022	40,049	13.7%	86.3%
2021	40,137	13.2%	86.8%
2020	39,804	12.7%	87.3%
2019	39,964	13.5%	86.5%
2018	40,271	12.9%	87.1%
2017	40,476	12.5%	87.5%
2016	40,735	13.0%	87.0%
2015	40,962	12.3%	87.7%
2014	40,922	12.0%	88.0%
2013	40,800	12.1%	87.9%
2012	40,568	11.4%	88.6%
2011	40,398	10.2%	89.8%
2010	40,131	9.6%	90.4%

Nativity & Citizenship FAQs for Marshall County, Iowa

Approximately 14.6% of residents in Marshall County, Iowa were born outside the United States.

The vast majority of residents, roughly 90.6%, are U.S. citizens (including both native-born and naturalized citizens).

Marshall County, Iowa Nativity & Citizenship Status (2024)