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Where is Williamson County, Illinois?

location of Williamson county on a map

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

With a total 1,150.87 sq. km of land and water area, Williamson County, Illinois is the 2365th largest county equivalent area in the United States. Home to 67,008 people, Williamson County has a total 30593 households earning 43125 on average per year.

Williamson County, Illinois - Quick Facts

FIPS Code 17199
Area Codes 618
Time Zone CST
Major Cities Marion (population: 27,076), Herrin (population: 12,926), Carterville (population: 9,839), Johnston City (population: 5,377), Creal Springs (population: 3,139), Pittsburg (population: 1,407), Energy (population: 1,235), Hurst (population: 813), Colp (population: 376), Cambria (population: 322)
Land Area 25,872 sq miles
Water Area 420 sq miles
Household Income $43,125
Housing Units 30,593
Median Home Value $93,700
High School Grads 89% of population
Holders of Bachelors Degrees 23% of population
Retail Spending $15,370 per capita
Food & Accomodation Sales $118,603 per capita
Universities and Colleges John A Logan College

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This page was last updated on June 30, 2016.