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 between September 24, 2026 and October 4, 2026.
Lake County, Montana, has about 33,000 residents (2024 Census Bureau estimate). Every warrant for Lake County comes from a judge of the Lake County District Court or the Justice 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: Lake County public records, Lake County arrest records, Lake County inmate search, Lake County criminal records, Lake County court records, Montana arrest records and Montana inmate search.
Who Issues Warrants in Lake County
In Montana an arrest warrant is signed by a judge. For Lake County that means the Lake County District Court, which hears felonies, civil cases, divorces, probate and juvenile matters; the Justice Court, which takes misdemeanors, traffic cases and small claims, issues its own warrants on the cases before it. A city with a city and 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 District Court.
The court records page SearchSystems verified for the county is at courts.mt.gov, which answered when SearchSystems opened it on September 24, 2026.
Montana has no single public index of every trial court case; each court's records are looked up through that court.
Who Serves Warrants in Lake County
The Lake County Sheriff's Office and the agencies that report for Polson, Ronan and St. Ignatius serve warrants in Lake County.
The agency that serves a warrant from Lake County is whichever one finds the person; an Montana warrant is valid across Montana.
Together, the four agencies in Lake County with all twelve months of 2025 on file reported 721 arrests to the FBI that year; arrests on warrants are counted among them, not separately.
Each agency and what it reported is in Lake County arrest records.
Where a Person Arrested on a Warrant from Lake 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 Lake County Sheriff's Office, held about 41 people on an average day in 2021 by the Vera Institute of Justice's count and has a custody page SearchSystems verified at roster.assurances.gov.gh/lake-county-montana-jail-roster.html. The Lake County inmate search guide covers the jail in full.
A person arrested in Lake 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 Lake County
Whether a warrant is out from Lake County shows in three places:
- The court file of the case, through the Clerk of District Court, since a warrant is recorded in the case it was issued in.
- The County Attorney, phone 406-883-7279, which can say whether charges were filed; a warrant on a complaint follows the filing.
- The custody page of the Lake County Sheriff's Office at roster.assurances.gov.gh, which shows people already arrested and booked, not open warrants.
Not one of the Lake County pages SearchSystems verified (the sheriff's, the court's and the prosecutor's) 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 Lake County
Only the judge who issued a warrant can recall it. For a case from Lake County that means appearing before the Lake County District Court or the Justice Court, with the case put back on the calendar through the Clerk of District Court.
A missed date in a case before the Justice Court is handled by that court, not by the Lake County District Court.
A lawyer can often arrange the appearance in advance. The County Attorney's page SearchSystems verified is at lakemt.gov/368/County-Attorneys-Office, phone 406-883-7279.
Frequently Asked Questions
Can I check for a warrant online in Lake County?
Not from the Lake County pages SearchSystems verified; none of them is a warrant list. The court file is the record of a warrant: ask the Clerk of District Court.
Who serves warrants in Lake County?
The Lake County Sheriff's Office, and the agency that reports for the city where the person is found; an Montana warrant is valid anywhere in the state.
Where is a person arrested on a warrant in Lake County held?
At the county jail, run by the Lake County Sheriff's Office, if kept in custody.
How is a warrant from Lake 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 District Court.
Is this the official Lake 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.