Sex Offenders in Boulder County, CO
As of August 2026, we index about 446 registrants with a Boulder County, CO address — about 13.5 per 10,000 residents. The figure is approximate and moves continuously — search below for the current picture on any specific person.
No code needed — type a name, get photographs and official registry records.
How Boulder County compares
Registrants we index per 10,000 residents, against the Colorado and national averages. All three rows come from the same continuously updated dataset, so the comparison divides like by like.
| Area | Registrants we index | Per 10,000 residents |
|---|---|---|
| Boulder County, CO | 446 | 13.5 |
| Colorado average | 12,918 | 22.4 |
| United States average | 1,563,010 | 47.2 |
Search Boulder County — and everywhere else at once
People move. A check limited to Boulder County misses a registration anywhere else, so a search here covers every US registry — all 50 states, DC and the territories — and lets you narrow to a Boulder County city or ZIP when that is the question. Every result is scored, carries its photographs, and links to the official registry record.
This is a live demo of the API shape returning sample data. Real, scored results across every registry require a free account with billing enabled.
City pages in Boulder County
Per-city counts and search for the Boulder County cities we publish pages for.
Boulder County offender search FAQ
How many registered sex offenders are in Boulder County?
As of August 2026, we index approximately 446 registrants with a Boulder County, CO address — about 13.5 per 10,000 residents, or about 1 in 742 residents. Treat the figure as scale rather than a fixed number: the registered population moves continuously as people are added, move, or are released from the requirement. When you need an answer about a specific person, run a search.
How does Boulder County compare with the rest of Colorado?
Boulder County sits at about 13.5 registrants we index per 10,000 residents, against a Colorado average of about 22.4 and a national average of about 47.2. Density varies block by block inside any county, so use the ratio as context — and a search, not an average, to answer about a specific address or person.
How do I check a specific person in Boulder County?
Type their last name and add whatever else you hold — first name, date of birth, or narrow to a Boulder County city or ZIP. You get scored matches with photographs and official record links, and the search covers every US registry at once, so someone now in Boulder County who was registered elsewhere still surfaces. Your first 25 searches are free, no card required.
Offendersearch is not a consumer reporting agency and results are not a consumer report. Do not use them for FCRA-covered decisions without appropriate process.