Mercer County, Illinois Nativity & Citizenship Status (2024)

Place of birth and citizenship status analysis for Mercer County, Illinois

Demographics Overview

Race & Ethnicity

Household Income

Nativity & Citizenship

Health Insurance

Class of Worker

Mercer County, Illinois Nativity & Citizenship Indicators (2024)

Native Born

98.9%

Foreign Born

1.1%

Naturalized

0.7%

US Citizens

99.7%

Mercer County, Illinois Nativity & Citizenship Distribution

Nativity Treemap for — Figure 1: Proportional distribution of population by place of birth in .

Mercer County, Illinois Historical Nativity Trends (2010–2024)

Historical nativity trends for — Figure 2: Evolution of nativity categories and total population volume from 2010 to 2024.

Mercer County, Illinois Population & Nativity History

**Table 1:** Comparison of total population and nativity percentages over time.
Year	Total Pop	Foreign Born	Native Born
2024	15,495	1.1%	98.9%
2023	15,619	1.1%	98.9%
2022	15,692	1.1%	98.9%
2021	15,779	1.4%	98.6%
2020	15,503	2.2%	97.8%
2019	15,589	1.0%	99.0%
2018	15,693	1.2%	98.8%
2017	15,794	1.4%	98.6%
2016	15,971	1.3%	98.7%
2015	16,107	0.9%	99.1%
2014	16,204	1.0%	99.0%
2013	16,325	1.0%	99.0%
2012	16,421	0.7%	99.3%
2011	16,497	0.7%	99.3%
2010	16,551	0.7%	99.3%

Nativity & Citizenship FAQs for Mercer County, Illinois

Approximately 1.1% of residents in Mercer County, Illinois were born outside the United States.

The vast majority of residents, roughly 99.7%, are U.S. citizens (including both native-born and naturalized citizens).

Compare Nativity Across Other Locations