PUBLIC REGISTRY INFORMATION

570 registered sex offenders in Jefferson County, Illinois

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

Registry snapshot

October 2026
Registry records
570
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
156.0
529% above the Illinois statewide rateIllinois: 24.8 per 10,000
Population estimate
36,550
About 1 registry record per
64 residents
Rank by registry rate#5 of 102 Illinois counties

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

About this snapshot

The October 2026 snapshot lists 570 registry records in Jefferson County, Illinois. With an estimated population of 36,550, that is 156.0 registry records per 10,000 residents. This is 529% above the Illinois statewide rate (24.8 per 10,000).

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Cities near Jefferson County

LocationRegistry recordsPopulation estimateRecords per 10,000
Rockford876147,52159.4
Bloomington25578,90732.3
Canton25113,144191.0
Alton21425,27984.7
Rock Island11936,15132.9
East Peoria8622,32438.5
Benton586,86384.5
West Frankfort557,11877.3
Caseyville364,13087.2
Burlington17425400.0
Nashville122,94040.8
Sesser102,02349.4
Ashley6412145.6
Pocahontas684371.2
Union562480.1
Bluford448382.8
Buda451777.4
Bonnie246143.4
Belle Rive138226.2
E Carondelet1——

ZIP codes near Jefferson County

LocationRegistry recordsPopulation estimateRecords per 10,000
ZIP code 6256844015,952275.8
ZIP code 6006414814,88499.4
ZIP code 6065112963,33520.4
ZIP code 6012012351,22524.0
ZIP code 6043511148,16723.0
ZIP code 61402941,623579.2
ZIP code 608049082,79710.9
ZIP code 604368419,42343.2
ZIP code 604336016,38236.6
ZIP code 616154923,52320.8
ZIP code 629604810,78344.5
ZIP code 601813030,3469.9
ZIP code 604773035,9768.3
ZIP code 600471844,2404.1
ZIP code 601341629,7435.4
ZIP code 604731621,2257.5
ZIP code 61856118,22613.4
ZIP code 623496517116.1
ZIP code 6289942,02219.8
ZIP code 6281631,13326.5

Other counties in Illinois

LocationRegistry recordsPopulation estimateRecords per 10,000
Lake County1,257714,22317.6
Kane County1,185517,25522.9
McHenry County517312,59116.5
Kankakee County394106,63536.9
Lee County33433,86998.6
Knox County30549,04662.2
Williamson County29866,87644.6
LaSalle County277108,71425.5
Johnson County22013,376164.5
Kendall County188137,67513.7
Logan County17327,71362.4
Lawrence County13415,03189.1
Edgar County9316,53556.2
Mason County8512,74566.7
Cass County7112,78455.5
Richland County6615,59842.3
Jo Daviess County5821,85126.5
Stark County415,30877.2
Jersey County3921,27418.3
Gallatin County254,81951.9

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 Jefferson County?

The October 2026 snapshot lists 570 registry records in Jefferson 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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