PUBLIC REGISTRY INFORMATION

136 registered sex offenders in Grundy County, Illinois

Explore registry information in Grundy County and check nearby locations on the free map.

Registry snapshot

October 7, 2026
Registry records
136
Registry source
Illinois Sex Offender Registry

Informational snapshot; verify current details with the official registry.

Registry context

Population & local comparison
Registry records per 10,000 residents
25.6
3% above Illinois’s rateIllinois: 24.8 per 10,000
Population estimate
53,219
About 1 registry record per
391 residents
Rank by registry rate#90 of 102 Illinois counties

U.S. Census Bureau, ACS 5-year estimate. Records relative to population, not the share of residents on a registry.

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Cities associated with Grundy County

LocationRegistry recordsPopulation estimateRecords per 10,000
Chicago4,8832,711,22618.0
Aurora346179,89819.2
Kewanee9511,91379.7
Streator9112,33073.8
Crest Hill6820,62833.0
Marseilles254,27958.4
Wilmington23——
Westmont2123,7248.9
Dwight193,87249.1
Atlanta171,580107.6
Braidwood166,06226.4
Channahon1213,9278.6
Coal City105,31718.8
Minooka912,8917.0
Seneca82,45032.7
Bonfield6473126.8
Essex41,02639.0
Hinckley42,33117.2
Ransom224581.6
South Chicago Heights13,9072.6

ZIP codes associated with Grundy County

LocationRegistry recordsPopulation estimateRecords per 10,000
ZIP code 6061929959,50350.2
ZIP code 6062417535,26349.6
ZIP code 6041115152,17528.9
ZIP code 6043511148,16723.0
ZIP code 60434102——
ZIP code 613649017,96350.1
ZIP code 604036618,37135.9
ZIP code 604505120,78324.5
ZIP code 60970435,99171.8
ZIP code 61341277,69235.1
ZIP code 605602428,7958.3
ZIP code 60420194,68240.6
ZIP code 60408165,32730.0
ZIP code 604101214,2398.4
ZIP code 60416109,55010.5
ZIP code 6042452,15323.2
ZIP code 6091351,68329.7
ZIP code 6174442,15718.5
ZIP code 60470235855.9
ZIP code 60437111785.5

Other counties in Illinois

LocationRegistry recordsPopulation estimateRecords per 10,000
Macon County585101,84957.4
Jefferson County57036,550156.0
Knox County30549,04662.2
Williamson County29866,87644.6
Jackson County25153,06447.3
Henry County18048,64337.0
Logan County17327,71362.4
Iroquois County12326,44946.5
Edgar County9316,53556.2
McDonough County9326,92034.5
Mason County8512,74566.7
Clay County5913,05245.2
Hancock County5417,28131.2
Mercer County4115,49526.5
Jersey County3921,27418.3
Jasper County359,18038.1
Hamilton County297,91636.6
Henderson County216,19333.9
Calhoun County174,33039.3
Hardin County153,60541.6

Each linked area shows its own total. Geographic totals overlap and should not be added together; cities and ZIP codes can cross county boundaries. Population figures, where shown: U.S. Census Bureau, ACS 5-year estimate.

Frequently asked questions

How many registered sex offenders are listed in Grundy County?

The October 7, 2026 snapshot lists 136 registered sex offenders in Grundy County, Illinois. Counts are informational and may differ from official registry totals.

How are the associated areas shown?

The linked areas share registry locations with Grundy County. City, county and ZIP boundaries can differ, and their totals should not be added together.

How can I check registry information near an address?

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