Skip to content
Alexander County

File:Alexander_County_Courthouse,_Cairo.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ108851· pop 52· linked from 1,404 articles

Alexander County

Sign in to save

Also known as Alexander County, Illinois, Alexander County, IL

county in Illinois, United States

Key facts

Country
United States
State
Illinois
Named after
William M. Alexander
Seat
Cairo
Largest city
Cairo
Total
253 sq mi (660 km )
Land
236 sq mi (610 km )
Water
17 sq mi (44 km ) 6.8%
Estimate 2025
4,570
Density
22.2/sq mi (8.57/km )
Time zone
UTC−6 ( Central )
Summer dst
UTC−5 ( CDT )
Congressional district
12th
Website
www .alexandercountyil .com

via Wikipedia infobox

Wikidata facts

Located in
Illinois
Capital
Cairo
Population
5240
Area
654
Shares border with
Cape Girardeau County
Image
US Post Office and Court House, Cairo.jpg
Households
2252
Show 8 more facts
water as percent of area
6.8
Commons category
Alexander County, Illinois
native label
Alexander County
inception
1819-03-04
different from
Alexander County
per capita income
20450
Sources (9)

via Wikidata · CC0

~11 min read

Encyclopedic overview

Alexander County is the southernmost county in the U.S. state of Illinois. In the 2020 census, the population was 5,240. Its county seat is Cairo and its western boundary is formed by the Mississippi River.

Alexander County is part of the Cape Girardeau–Jackson metropolitan area which is made up of jurisdictions on both sides of the Mississippi River.

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

Gallery (6)

On the map