Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. 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). Every warrant for Boulder County comes from a judge of the Boulder County District Court or the County Court, is served by whichever agency finds the person, and is recorded in the court file of the case it was issued in. This guide says who issues and serves warrants here, where a person arrested on one is held, how to check for one and how one is cleared.
This guide covers who issues warrants, who serves warrants, after a warrant arrest, checking for a warrant, clearing a warrant and common questions.
Related guides: Boulder County public records, Boulder County arrest records, Boulder County inmate search, Boulder County criminal records, Boulder County court records, Colorado arrest records and Colorado inmate search.
Who Issues Warrants in Boulder County
In Colorado an arrest warrant is signed by a judge. For Boulder County that means the Boulder County District Court, which hears felonies, civil cases over $25,000, divorces, probate and juvenile matters; the County Court, which takes misdemeanors, traffic cases and civil cases up to $25,000, issues its own warrants on the cases before it. A city with a municipal court of its own issues warrants on the tickets and ordinance cases it tries.
When a defendant misses a court date the judge issues a bench warrant, and either kind of warrant lives in the court file of the case, kept by the clerk of the combined court.
The court records page SearchSystems verified for the county is at coloradojudicial.gov/courts/trial-courts/boulder-county (page title: Boulder County | Colorado Judicial Branch), phone (303)441-3750, 1035 Kimbark St Longmont, CO 80501, mont Courthouse Hours: Monday - Friday 8:00 a.m. - 5:00 p.m., which answered when SearchSystems opened it on September 23, 2026.
Colorado has no single public index of every trial court case; each court's records are looked up through that court.
Who Serves Warrants in Boulder County
The Boulder County Sheriff's Office and the agencies that report for Boulder, Longmont, Lafayette and Louisville serve warrants in Boulder County.
The FBI's agency list also places these agencies in Boulder County: Colorado Department of Revenue in Marijuana Enforcement Criminal Investigation, Boulder County (state agency); the University of Colorado at Boulder (campus police); each serves warrants on its own ground.
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.
A warrant issued in Boulder County is good anywhere in Colorado, so it is served by whichever agency finds the person, in a traffic stop as often as at the door.
Together, the five agencies in Boulder County with all twelve months of 2025 on file reported 7,765 arrests to the FBI that year; arrests on warrants are counted among them, not separately.
Each agency and what it reported is in Boulder County arrest records.
Where a Person Arrested on a Warrant from Boulder County Is Held
A person arrested on a warrant and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Boulder County Sheriff's Office, held about 320 people on an average day in 2025 by the Vera Institute of Justice's count and has a custody page SearchSystems verified at bouldercounty.gov/safety/jail/listing-and-booking-reports, phone 303-441-3600. The Boulder County inmate search guide covers the jail in full.
A person arrested in Boulder County on a warrant from another county is held at the same jail until that county takes custody.
How to Check for a Warrant in Boulder County
The places to check for a warrant from Boulder County:
- The court file of the case, through the clerk of the combined court at (303)441-3750, since a warrant is recorded in the case it was issued in.
- The District Attorney, phone 303-441-3700, which can say whether charges were filed; a warrant on a complaint follows the filing.
- The custody page of the Boulder County Sheriff's Office at bouldercounty.gov, which shows people already arrested and booked, not open warrants.
Not one of the Boulder County pages SearchSystems verified (the sheriff's, the court's, the prosecutor's and the records request page) is a list of open warrants, so a check means asking the court or the prosecutor about a case by name.
Clearing a Warrant from Boulder County
Only the judge who issued a warrant can recall it. For a case from Boulder County that means appearing before the Boulder County District Court or the County Court, with the case put back on the calendar through the clerk of the combined court.
A missed date in a case before the County Court is handled by that court, not by the Boulder County District Court.
A lawyer can often arrange the appearance in advance. The District Attorney's page SearchSystems verified is at bouldercounty.gov/district-attorney, phone 303-441-3700.
Frequently Asked Questions
Can I check for a warrant online in Boulder County?
Not from the Boulder County pages SearchSystems verified; none of them is a warrant list. The court file is the record of a warrant: ask the clerk of the combined court at (303)441-3750.
Who serves warrants in Boulder County?
The Boulder County Sheriff's Office, and the agency that reports for the city where the person is found; a Colorado warrant is valid anywhere in the state.
Where is a person arrested on a warrant in Boulder County held?
At the county jail, run by the Boulder County Sheriff's Office, if kept in custody.
How is a warrant from Boulder County cleared?
By appearing before the court that issued it; the judge recalls the warrant in court. The case is put back on the calendar through the clerk of the combined court at (303)441-3750.
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.