Jersey County, Illinois

Jersey County, Illinois, had an estimated population of 21,160 in 2025 across 957 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Illinois's counties and nationally.

Population: 21,160; 2025 estimate
Area: 957 km²
Density: 22; per km²
Median income: $80,361; household, ACS 2024
Median age: 43.7; years, ACS 2024

How Illinois's counties spread

Amenities & Infrastructure

Indicator	Value	In Illinois	In the US
Households with Broadband2024	86.4%	64 / 102	1,712 / 3,144
Median Gross Rent2024	$846	40 / 102	1,776 / 3,137
Median Home Value2024	$171,900	27 / 102	1,764 / 3,139
Owner-Occupied Homes2024	80.5%	22 / 102	544 / 3,144
Vacant Homes2024	20.0%	10 / 102	827 / 3,144

Demography

Indicator	Value	In Illinois	In the US
Aged 65 and Over2024	20.6%	52 / 102	1,349 / 3,144
American Indian & Alaska Native2024	0.0%	62 / 102	2,461 / 3,144
Asian, non-Hispanic2024	0.7%	39 / 102	1,366 / 3,144
Average Household Size2024people	2.5	14 / 102	882 / 3,144
Black, non-Hispanic2024	0.6%	78 / 102	2,332 / 3,144
Foreign-Born2024	1.0%	77 / 102	2,664 / 3,144
Hispanic or Latino2024	1.6%	83 / 102	2,831 / 3,144
Median Age2024years	43.7	32 / 102	947 / 3,144
Sex Ratio2024per 1,000 males	1,049	9 / 102	516 / 3,144
Speak a Language Other Than English2024	1.8%	91 / 102	2,822 / 3,144
Under 182024	19.8%	80 / 102	2,325 / 3,144
Veterans2024	8.7%	14 / 102	715 / 3,144
White, non-Hispanic2024	94.6%	21 / 102	123 / 3,144

Economy

Indicator	Value	In Illinois	In the US
Below Poverty Line2024	8.8%	85 / 102	2,602 / 3,144
Households on SNAP2024	11.9%	76 / 102	1,532 / 3,144
Income Inequality2024index	0.425	65 / 102	2,320 / 3,144
Median Household Income2024	$80,361	18 / 102	573 / 3,143
Per Capita Income2024	$38,634	30 / 102	1,004 / 3,144
Unemployment Rate2024	3.4%	82 / 102	2,210 / 3,144

Education

Indicator	Value	In Illinois	In the US
Bachelor's Degree or Higher2024	22.6%	40 / 102	1,503 / 3,144
High School or Higher2024	94.1%	12 / 102	463 / 3,144

Health Coverage

Indicator	Value	In Illinois	In the US
No Health Insurance2024	5.0%	53 / 102	2,524 / 3,144
With a Disability2024	13.2%	84 / 102	2,385 / 3,144

Population & Density

Indicator	Value	In Illinois	In the US
Population2025	21,160	54 / 102	1,768 / 3,144
Population Density2025/km²	22	41 / 102	1,333 / 3,144

Work & Commute

Indicator	Value	In Illinois	In the US
Commute by Public Transit2024	0.3%	45 / 102	1,112 / 3,144
Households with No Vehicle2024	4.7%	73 / 102	1,942 / 3,144
Mean Commute Time2024minutes	27.1	22 / 102	919 / 3,143
Work from Home2024	11.7%	18 / 102	835 / 3,144

Other counties of Illinois

Compare Jersey County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.