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States / Illinois / Marion County

Marion County

Population 37,543 · ACS 2020-2024

Median Household Income
$61,240
Median Home Value
$103,000
Median Gross Rent
$794/mo
Poverty Rate
15.4%
Unemployment Rate
5.9%
Homeownership Rate
74.7%
Bachelor's Degree or Higher
16.8%
Median Age
41.5

Population Over Time

Marion County shrank 4.9% from 2014 to 2024.

2014
38,922
2016
38,503
2018
38,084
2020
37,524
2022
37,543
2024
37,000

Source: U.S. Census Bureau, American Community Survey, ACS 2020-2024.

Marion County: Population, Income & Housing | CityMetricsUSA