Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site on September 23, 2026.
Boulder County, Colorado, has about 330,000 residents (2024 Census Bureau estimate). A police report belongs to the agency whose officer wrote it, so which office holds a report from Boulder County depends on where the incident happened: the Boulder County Sheriff's Office for the unincorporated county, the agency that reports for the city inside a city. This guide names each agency, where its records page is and what the Colorado Open Records Act requires of it.
This guide covers which agency, the sheriff's reports, the cities' reports, how many reports, what the law requires and common questions.
Related guides: Boulder County public records, Boulder County arrest records, Boulder County warrants, Boulder County inmate search, Boulder County criminal records, Colorado arrest records and Colorado inmate search.
Which Agency Holds a Report from Boulder County
The report of an incident is released by the agency that took it; the court and the jail hold their own records of the same event, but not the report.
In Boulder County that is the Boulder County Sheriff's Office for the unincorporated county and for any city that contracts with it for police service, and the agency that reports for a city where the city has one of its own.
The FBI's list also carries Colorado Department of Revenue in Marijuana Enforcement Criminal Investigation, Boulder County (state agency) and the University of Colorado at Boulder (campus police), each with a records office of its own.
The Erie Police Department is listed by the FBI across two counties including Boulder County, so its arrests are not broken out for Boulder County here.
Reports from the Boulder County Sheriff's Office
The Boulder County Sheriff's Office is the county agency; it had 108 violent and 518 property crimes reported for 2025 and reported 1,242 arrests for 2025.
Its reports come from its records unit, reached through the office at 303-441-3600. The office's page SearchSystems verified is its custody page, at bouldercounty.gov/safety/jail/listing-and-booking-reports (page title: Daily Booking and Listing Reports | Boulder County), phone 303-441-3600, 5600 Flatiron Parkway Boulder, CO 80301, Monday - Friday 8 a.m. - 5 p.m., which answered when SearchSystems opened it on September 23, 2026.
Reports from the City Agencies in Boulder County
The four cities the FBI lists in Boulder County with a reporting agency of their own, with the police records page SearchSystems verified where the city has a guide:
- Boulder: 377 violent and 2,580 property crimes reported for 2025; 3,201 arrests reported for 2025.
- Longmont: 350 violent and 2,438 property crimes reported for 2025; 2,378 arrests reported for 2025. The Longmont police records page is at longmontcolorado.gov/public-safety/public-safety-services/reports-o..., phone 719-597-1277 (verified September 25, 2026).
- Lafayette: 87 violent and 486 property crimes reported for 2025; 635 arrests reported for 2025.
- Louisville: 22 violent and 319 property crimes reported for 2025; 309 arrests reported for 2025.
A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
How Many Reports: Boulder County in 2025
The five agencies in Boulder County with all twelve months of 2025 on file reported 944 violent and 6,341 property crimes to the FBI that year, each one a report taken by the agency that holds it.
Together, the five agencies in Boulder County with all twelve months of 2025 on file reported 7,765 arrests to the FBI that year, and each arrest is a report of its own.
What the Colorado Open Records Act Requires
Under the Colorado Open Records Act the agency must answer a request within 3 working days, extendable to 7 when there are extenuating circumstances, and it may charge research and retrieval time after the first hour, plus copying. The request goes to the agency that holds the report, in writing, and does not have to say why the report is wanted.
Any other county record goes through the county records request page SearchSystems verified, at bouldercountyco.govqa.us/WEBAPP/_rs/(S(040pjzlu0pbmmyei4elguzgb))/s... (page title: BOULDER COUNTY COLORADO PUBLIC RECORDS REQUEST CENTER).
A defendant who has been charged gets the report through the case: the District Attorney, 303-441-3700, handles discovery for pending cases.
Frequently Asked Questions
How do I get a police report in Boulder County?
From the agency whose officer took it: the Boulder County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Colorado Open Records Act the answer is due within 3 working days, extendable to 7 when there are extenuating circumstances.
How long does an agency in Boulder County have to answer?
Under the Colorado Open Records Act, within 3 working days, extendable to 7 when there are extenuating circumstances. It may charge research and retrieval time after the first hour, plus copying.
How do I get a report from the Boulder County Sheriff's Office?
From its records unit, reached through the office at 303-441-3600. Under the Colorado Open Records Act the answer is due within 3 working days, extendable to 7 when there are extenuating circumstances.
Is this the official Boulder County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.