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Richland County

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

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Richland County

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Also known as Richland County, Illinois, Richland County, IL

county in Illinois, United States

Key facts

Country
United States
State
Illinois
Founded
February 24, 1841
Named after
Richland County, Ohio
Seat
Olney
Largest city
Olney
Total
362 sq mi (940 km )
Land
356 sq mi (920 km )
Water
1.9 sq mi (4.9 km ) 0.5%
Estimate 2025
15,219
Density
44.4/sq mi (17.2/km )
Time zone
UTC−6 ( Central )
Summer dst
UTC−5 ( CDT )
Congressional district
12th
Website
richlandcounty .illinois .gov

via Wikipedia infobox

Wikidata facts

Named after
Richland County
Located in
Illinois
Capital
Olney
Population
15813
Area
938
Shares border with
Clay County
Image
Richland County Courthouse in Olney.jpg
Households
6527
Show 7 more facts
Commons category
Richland County, Illinois
inception
1841-02-24
different from
Richland Parish
water as percent of area
0.5
native label
Richland County
per capita income
28457
Sources (8)

via Wikidata · CC0

~6 min read

Encyclopedic overview

Richland County is a county located in the U.S. state of Illinois. According to the 2020 United States census, it had a population of 15,813. Its county seat is Olney.

History

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

Gallery (3)

On the map