Jefferson County Criminal Records

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Use the official court, custody, police-record, and statewide paths for Jefferson County, Montana; jurisdiction limits are explained.

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Jefferson County public records: common questions

Where to search Jefferson County records

Jefferson County, Montana court, custody, police, and statewide records are kept in separate systems. Start court research with District Court clerk, e-filing, and records information. Check current custody through Sheriff, public safety, detention roster link, and emergency contacts.

Court casesDistrict Court clerk, e-filing, and records information
Current custodySheriff, public safety, detention roster link, and emergency contacts
Statewide recordsUse the Montana state-level source described below when available.
Federal recordsFederal court and custody records are outside county systems and require a separate federal search.

Verified local details

These details were drawn from the official sources linked in this guide. Reconfirm addresses, contacts, schedules, fees, and other time-sensitive details with the responsible agency.

The Sheriff’s Office is at 110 S Washington St in Boulder and lists 911 and a 406-225-4075 non-emergency number.
The county contact directory lists District Court at 406-225-4041 and Justice Court at 406-225-4055.
Jefferson County District Court is in Montana’s 5th Judicial District, which also serves Beaverhead and Madison counties.
The District Court page states that e-filing is live and that its clerk does not provide legal forms or legal advice.

Jefferson County official record-source actions
Record type	Agency or source	Scope	Action	Last checked
Court cases	District Court clerk, e-filing, and records information	County or local	Open source	August 10, 2026
Local court cases	County offices, District Court, Justice Court, and Sheriff contacts	Local	Open source	August 10, 2026
Jail and custody	Sheriff, public safety, detention roster link, and emergency contacts	County or local	Open source	August 10, 2026
Court cases	Jefferson County official source (courts.mt.gov)	County or local	Open source	August 10, 2026

How this guide is maintained: This matrix only republishes government and agency destinations supported by the researched guide or its reviewed county source registry. Page updated August 10, 2026. Agency sites and coverage can change, so confirm current rules with the source. Read our county source-review and correction policy.

This Jefferson County records guide is organized around the way the information is actually maintained. Begin with the Q&A for the record you need, then use the source map below to confirm a case, custody status, incident report, or statewide search. Jefferson County has 13,329 residents (2025 estimate). The source map below identifies the relevant local courts and agencies. Offices and online systems change, so confirm details with the agency before relying on a record.

Quick facts

County-equivalent identity: 30-043
Population: 13,329 residents (2025 estimate)
Local detail: The Sheriff’s Office is at 110 S Washington St in Boulder and lists 911 and a 406-225-4075 non-emergency number.
Local detail: The county contact directory lists District Court at 406-225-4041 and Justice Court at 406-225-4055.
Local detail: Jefferson County District Court is in Montana’s 5th Judicial District, which also serves Beaverhead and Madison counties.
Local detail: The District Court page states that e-filing is live and that its clerk does not provide legal forms or legal advice.

What is specific about this local guide

Local detail: The Sheriff’s Office is at 110 S Washington St in Boulder and lists 911 and a 406-225-4075 non-emergency number.
Local detail: The county contact directory lists District Court at 406-225-4041 and Justice Court at 406-225-4055.
Local detail: Jefferson County District Court is in Montana’s 5th Judicial District, which also serves Beaverhead and Madison counties.

How can I check the Jefferson County detention roster?

For Jefferson County, start with Sheriff, public safety, detention roster link, and emergency contacts and County offices, District Court, Justice Court, and Sheriff contacts, then confirm the filing court or creating agency. How can I check the Jefferson County detention roster depends on the record type and jurisdiction. No live detention roster, booking record, or case docket was independently reviewed.

Which court handles a Jefferson County misdemeanor or traffic matter?

For Jefferson County, start with Sheriff, public safety, detention roster link, and emergency contacts and County offices, District Court, Justice Court, and Sheriff contacts, then confirm the filing court or creating agency. Which court handles a Jefferson County misdemeanor or traffic matter depends on the record type and jurisdiction. No live detention roster, booking record, or case docket was independently reviewed.

How do I contact the Jefferson County District Court clerk?

For Jefferson County, start with Sheriff, public safety, detention roster link, and emergency contacts and County offices, District Court, Justice Court, and Sheriff contacts, then confirm the filing court or creating agency. How do I contact the Jefferson County District Court clerk depends on the record type and jurisdiction. No live detention roster, booking record, or case docket was independently reviewed.

How does Jefferson County e-filing work?

For Jefferson County, start with Sheriff, public safety, detention roster link, and emergency contacts and County offices, District Court, Justice Court, and Sheriff contacts, then confirm the filing court or creating agency. How does Jefferson County e-filing work depends on the record type and jurisdiction. No live detention roster, booking record, or case docket was independently reviewed.

How do I request a Jefferson County public record?

For Jefferson County, start with Sheriff, public safety, detention roster link, and emergency contacts and County offices, District Court, Justice Court, and Sheriff contacts, then confirm the filing court or creating agency. How do I request a Jefferson County public record depends on the record type and jurisdiction. No live detention roster, booking record, or case docket was independently reviewed.

What is the difference between Boulder Justice Court and Whitehall City Court?

For Jefferson County, start with Sheriff, public safety, detention roster link, and emergency contacts and County offices, District Court, Justice Court, and Sheriff contacts, then confirm the filing court or creating agency. What is the difference between Boulder Justice Court and Whitehall City Court depends on the record type and jurisdiction. No live detention roster, booking record, or case docket was independently reviewed.

Police, sheriff, and incident records

Request a police or incident record from the sheriff or municipal police agency that created it. County contacts, court schedules, and links may change.

Criminal cases in Jefferson County

Start with District Court clerk, e-filing, and records information for the official Jefferson County court path. County: Jefferson County Sheriff, county officials, and emergency services handle county-level public safety and administration. Court: The 5th Judicial District serves Jefferson County; Boulder Justice Court and Whitehall City Court handle limited local matters.

Jail and custody information for Jefferson County

For current custody information, start with Sheriff, public safety, detention roster link, and emergency contacts. No live detention roster, booking record, or case docket was independently reviewed.

Municipal and local court records

Use County offices, District Court, Justice Court, and Sheriff contacts for a local or municipal court path. Custody: The Sheriff’s website links to a detention-center inmate roster, but the roster itself was not independently reviewed. Municipal: Whitehall City Court and municipal services operate separately from county District Court and Sheriff administration.

Statewide sources for Montana records

Statewide Montana sources are separate from Jefferson County local records. Do not treat a statewide search as a complete county docket, jail roster, or police-record database.

Cities covered by local record systems

The relevant local courts and agencies may serve different incorporated municipalities, so confirm the filing locality before relying on a record.

Nearby Montana records pages

No adjacent county guide is live yet.

Nearby county links will be added after the neighboring pages pass the same source and content review.

Official Jefferson County and Montana record sources

For an official starting point, use District Court clerk, e-filing, and records information. Confirm current access rules, fees, contacts, and jurisdiction with the responsible agency.

Disclosure: criminal.com may earn a commission when you use the people-search tool on this page, which is powered by a third-party background-check service. Results are for personal knowledge only and may not be used for employment, housing, credit, tenant screening, or any other purpose covered by the Fair Credit Reporting Act. An arrest or booking record is not proof of guilt. This page is general information, not legal advice; for advice about a specific situation, consult an attorney.

Prefer an official source? For an official starting point, use District Court clerk, e-filing, and records information. Confirm current access rules, fees, contacts, and jurisdiction with the responsible agency.

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