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Marion County

File:Marion_County_Courthouse_in_Salem.jpg · Wikimedia Commons · See Wikimedia Commons

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Marion County

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Also known as Marion County, Illinois, Marion County, IL

county in Illinois, United States

Key facts

Country
United States
State
Illinois
Named after
Francis Marion
Seat
Salem
Largest city
Centralia
Total
576 sq mi (1,490 km )
Land
572 sq mi (1,480 km )
Water
3.7 sq mi (9.6 km ) 0.6%
Estimate 2025
36,382
Density
66.0/sq mi (25.5/km )
Time zone
UTC−6 ( Central )
Summer dst
UTC−5 ( CDT )
Congressional district
15th

via Wikipedia infobox

Wikidata facts

Named after
Francis Marion
Located in
Illinois
Contains
Salem
Capital
Salem
Population
37729
Area
1481
Shares border with
Wayne County
Official website
marioncountyil.gov
Image
Marion County Courthouse in Salem.jpg
Households
16126
Show 8 more facts
Commons category
Marion County, Illinois
inception
1823-00-00
different from
Marion County
water as percent of area
0.6
native label
Marion County
per capita income
26853
Sources (8)

via Wikidata · CC0

~5 min read

Encyclopedic overview

Marion County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 37,729. Its county seat is Salem. Marion County comprises the Centralia, IL Micropolitan Statistical Area, which is included in the St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area.

History

Excerpted from Wikipedia’s “Marion County” article, available under the CC BY-SA 4.0 licence.

Gallery (4)

On the map