**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	12,784	14.2%	85.8%
2023	12,826	13.1%	86.9%
2022	12,955	10.6%	89.4%
2021	13,058	11.4%	88.6%
2020	12,324	11.6%	88.4%
2019	12,493	11.1%	88.9%
2018	12,665	10.9%	89.1%
2017	12,880	11.4%	88.6%
2016	13,068	10.7%	89.3%
2015	13,254	10.9%	89.1%
2014	13,440	11.0%	89.0%
2013	13,530	10.3%	89.7%
2012	13,570	10.3%	89.7%
2011	13,639	10.3%	89.7%
2010	13,648	8.7%	91.3%

Nativity & Citizenship FAQs for Cass County, Illinois

Approximately 14.2% of residents in Cass County, Illinois were born outside the United States.

The vast majority of residents, roughly 88.9%, are U.S. citizens (including both native-born and naturalized citizens).

Cass County, Illinois Nativity & Citizenship Status (2024)