PUBLIC REGISTRY INFORMATION

442 registered sex offenders in Boulder County, Colorado

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

Registry snapshot

October 2026
Registry records
442
Registry source
Colorado 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
13.4
43% below the Colorado statewide rateColorado: 23.5 per 10,000
Population estimate
328,961
About 1 registry record per
744 residents
Rank by registry rate#54 of 64 Colorado counties

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

About this snapshot

The October 2026 snapshot lists 442 registry records in Boulder County, Colorado. With an estimated population of 328,961, that is 13.4 registry records per 10,000 residents. This is 43% below the Colorado statewide rate (23.5 per 10,000).

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Cities near Boulder County

LocationRegistry recordsPopulation estimateRecords per 10,000
Longmont22999,40623.0
Loveland21778,41027.7
Boulder137106,43312.9
Golden7220,41735.3
Lafayette3430,60211.1
Federal Heights3214,12522.7
Frederick2716,65116.2
Berthoud2212,41117.7
Erie2233,8086.5
Milliken208,87122.5
Louisville1420,7866.7
Superior1013,3057.5
Nederland51,65530.2
Allenspark382536.4
Lyons31,83816.3
Eldorado Springs232062.5
Bouder1——
Niwot13,4472.9
Pinecliffe1——
Ward110397.1

ZIP codes near Boulder County

LocationRegistry recordsPopulation estimateRecords per 10,000
ZIP code 8050113844,14731.3
ZIP code 80000132——
ZIP code 802609234,67726.5
ZIP code 805048963,45114.0
ZIP code 803017225,00728.8
ZIP code 800263332,70110.1
ZIP code 805162739,0486.9
ZIP code 800272534,1277.3
ZIP code 803042425,3839.5
ZIP code 805032235,8466.1
ZIP code 804031920,7329.2
ZIP code 803031624,9966.4
ZIP code 803021529,5695.1
ZIP code 80305716,2914.3
ZIP code 80510366345.2
ZIP code 8054034,6426.5
ZIP code 800252138144.9
ZIP code 803091——
ZIP code 804711——
ZIP code 80481148420.7

Other counties in Colorado

LocationRegistry recordsPopulation estimateRecords per 10,000
Denver County2,106718,87729.3
Mesa County602158,60138.0
Delta County12831,59840.5
Montezuma County11826,41244.7
Broomfield County7876,30410.2
Alamosa County7216,58143.4
Elbert County6427,87423.0
Archuleta County4913,90035.3
Costilla County433,607119.2
Rio Grande County3811,32133.6
Summit County3531,01711.3
Chaffee County3420,17816.9
Conejos County307,53039.8
Crowley County275,64747.8
Clear Creek County259,26227.0
Custer County185,24734.3
Gunnison County1117,2416.4
Cheyenne County81,74146.0
Kiowa County71,37650.9
San Miguel County67,9687.5

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 Boulder County?

The October 2026 snapshot lists 442 registry records in Boulder County, Colorado. 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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