Jackson County, Illinois

County seat: Murphysboro · Population 52,501 (2025) · 584 sq mi

Jackson County is the 27th most populous of Illinois's 102 counties, with 52,501 people (2025 estimate). Its county seat is Murphysboro. It is part of the Southern region, one of the 10 Illinois economic development regions (DCEO). The map shows its 11 cities and towns and the 6 neighboring counties.

Map of Jackson County, Illinois with cities, towns and the county boundary
Jackson County, Illinois with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

Jackson County facts

County seat
Murphysboro
Population (2025 estimate)
52,501 −1.6% since 2020
Land area
584 sq mi 37th largest of 102
Water area
19 sq mi
Population density
90 per sq mi
Established
1816
Same name
One of 23 Jackson Counties in the US
Named after
Andrew Jackson president of the United States from 1829 to 1837
Largest city
Carbondale 21,811 in the county
Median household income
$48,763
Cities and towns
11 plus 1 CDPs
ZIP codes
22
Time zone
Central
FIPS code
17077

Cities and towns in Jackson County

Jackson County has 11 incorporated cities, towns and villages. Populations count the people living inside Jackson County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
CarbondaleCity21,811Williamson County
Murphysboro (county seat)City6,977
De SotoVillage1,388
ElkvilleVillage831
AvaCity542
MakandaVillage542
Grand TowerCity474
DowellVillage364
Campbell HillVillage308
VergennesVillage234
GorhamVillage168

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Harrison830

ZIP codes in Jackson County

22 ZIP codes reach into Jackson County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Jackson County, 2020–2025

Jackson County shrank by 846 people (−1.6%) between April 2020 and July 2025: 215 more deaths than births and a net loss of 669 people from migration.

Year (July 1)Population
202053,289
202153,056
202252,729
202352,507
202452,682
202552,501

Neighboring counties

Printable Jackson County map

The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.

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Sources

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