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Williamson County Population

All Williamson County population data above are from the US Census Bureau.

Williamson County Demographics Summary

population icon Population

With 67,560 people, Williamson County is the 22nd most populated county in the state of Illinois out of 102 counties. But watch out, Williamson County, because Adams County with 66,578 people and Jackson County with 58,870 people are right behind you.

Williamson County 67,560
Adams County 66,578
Jackson County 58,870

race icon Race & Ethnicity

The largest Williamson County racial/ethnic groups are White (90.7%) followed by Black (4.1%) and Hispanic (2.3%).

Top Race & Ethnicity Groups %
White 90.7%
Black 4.1%
Hispanic 2.3%

income icon Median Income

In 2015, the median household income of Williamson County residents was $44,453. Williamson County households made slightly more than Clay County households ($44,209) and Hamilton County households ($44,159) . However, 15.0% of Williamson County residents live in poverty.

Median Household Income
Williamson County $44,453
Clay County $44,209
Hamilton County $44,159

age icon Median Age

The median age for Williamson County residents is 41.0 years young.

Median Age 41.0

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Starter Report Sample

The District of Columbia Starter Report, shown on the left, will give you a good idea of what to expect in a Starter Report. The Williamson County, IL report will have the same data, charts & graphs as this sample.

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