Where is Marion County, Illinois?

location of Marion county on a map — Location of Marion County within the state of Illinois

Marion County is a county equivalent area found in Illinois, USA. The county government of Marion is found in the county seat of Salem.

With a total 1,491.93 sq. km of land and water area, Marion County, Illinois is the 1860th largest county equivalent area in the United States. Home to 38,571 people, Marion County has a total 18076 households earning 41010 on average per year.

Marion County, Illinois - Quick Facts

FIPS Code	17121
Area Codes	618
Time Zone	CST
Major Cities	Centralia (population: 22,239), Salem (population: 11,228), Sandoval (population: 2,299), Iuka (population: 2,174), Odin (population: 2,051), Kinmundy (population: 1,751), Patoka (population: 1,152), Kell (population: 1,019), Walnut Hill (population: 967), Alma (population: 947)
Land Area	14,892 sq miles
Water Area	572 sq miles
Household Income	$41,010
Housing Units	18,076
Median Home Value	$70,300
High School Grads	87% of population
Holders of Bachelors Degrees	14% of population
Retail Spending	$8,734 per capita
Food & Accomodation Sales	$36,765 per capita