PUBLIC REGISTRY INFORMATION

298 registered sex offenders in Williamson County, Illinois

See the October 2026 registry snapshot for Williamson County and search the map near a specific address.

Registry snapshot

October 2026
Registry records
298
Registry source
Illinois Sex Offender Registry

This is a snapshot. Check the official registry for current information.

Registry statistics

Population and rate comparison
Registry records per 10,000 residents
44.6
80% above the Illinois statewide rateIllinois: 24.8 per 10,000
Population estimate
66,876
About 1 registry record per
224 residents
Rank by registry rate#53 of 102 Illinois counties

U.S. Census Bureau, ACS 5-year estimate.

About this snapshot

The October 2026 snapshot lists 298 registry records in Williamson County, Illinois. With an estimated population of 66,876, that is 44.6 registry records per 10,000 residents. This is 80% above the Illinois statewide rate (24.8 per 10,000).

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Cities near Williamson County

LocationRegistry recordsPopulation estimateRecords per 10,000
Chicago4,8832,711,22618.0
Taylorville43410,646407.7
Canton25113,144191.0
Centralia23911,856201.6
Dixon22814,910152.9
Carbondale12622,15856.9
Benton586,86384.5
Harrisburg588,37269.3
Anna504,196119.2
Carterville235,81839.5
Morton2216,59513.3
Carrier Mills171,634104.0
Royalton71,21457.7
Colp5223224.2
Creal Springs5324154.3
Hurst570071.4
Simpson5——
Bush235456.5
Cambria21,30015.4
Muskegon2——

ZIP codes near Williamson County

LocationRegistry recordsPopulation estimateRecords per 10,000
ZIP code 6062847960,43179.3
ZIP code 626814615,553830.2
ZIP code 6152024916,291152.8
ZIP code 6102124022,308107.6
ZIP code 6286416722,77973.3
ZIP code 6103214029,02048.2
ZIP code 622741388,041171.6
ZIP code 6245411110,477105.9
ZIP code 628126111,61152.5
ZIP code 628965310,62749.9
ZIP code 622464610,07745.6
ZIP code 62863369,37938.4
ZIP code 615502218,79211.7
ZIP code 61285202,72873.3
ZIP code 62917172,30373.8
ZIP code 62951155,34228.1
ZIP code 62902104,13524.2
ZIP code 6289541,96020.4
ZIP code 6290342,66615.0
ZIP code 619181——

Other counties in Illinois

LocationRegistry recordsPopulation estimateRecords per 10,000
Will County1,329701,46218.9
Winnebago County1,206283,29242.6
Madison County898264,23834.0
Lee County33433,86998.6
Adams County30264,75446.6
Whiteside County22554,94740.9
Clinton County19936,95453.9
Boone County19753,23037.0
Brown County1536,322242.0
Bureau County13932,86642.3
Effingham County12834,52237.1
Iroquois County12326,44946.5
Woodford County10538,31227.4
Bond County9816,71658.6
White County8013,61958.7
Richland County6615,59842.3
Carroll County5915,57637.9
Alexander County354,87571.8
Hamilton County297,91636.6
Calhoun County174,33039.3

Each area shows its own total. City, county, and ZIP totals can overlap. Population figures, where shown: U.S. Census Bureau, ACS 5-year estimate.

Frequently asked questions

How many registered sex offenders are listed in Williamson County?

The October 2026 snapshot lists 298 registry records in Williamson County, Illinois. Counts may differ from official registry totals. Check the official registry for current details.

How do city, county, and ZIP totals relate?

City, county, and ZIP boundaries can overlap, so the same registry record may appear in more than one area.

How can I check registry information near an address?

Open the free interactive map, enter an address, and choose a search radius. Verify identity and current status with the official registry.

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