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Cities and Towns in the United States > State Montana > Jefferson County
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Jefferson County is located in the state of Montana, known for its diverse natural landscape and historical significance. The county is home to the Elkhorn Mountains and the Boulder River, offering outdoor enthusiasts opportunities for hiking, fishing, and wildlife viewing. The Lewis and Clark Caverns State Park is a popular destination within the county, featuring limestone caves and scenic hiking trails. Visitors can also explore the historic town of Jefferson City and learn about the county's mining heritage at the Montana Historical Society's museum. Jefferson County hosts the Jefferson County Fair and Rodeo, a beloved community event celebrating the area's agricultural traditions.

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Jefferson County administration contact details

Jefferson County, Montana administration contact detailsAddress
County seatClancy
Phone number+1 406-225-4020
Email address[email protected]
Official websitehttps://www.jeffersoncounty-mt.gov
County clerkHeather McPherson
County permits office+1 406-225-4010
County commissionerRobert Mullen

Jefferson County, MT Sheriff's Office and Jail Information

Number of prisons1
Jail namesJefferson County Detention Center
Sheriff office address110 S Washington St, Boulder, MT 59632
Sheriff office phone number406-225-4075
Inmate search informationTo locate an inmate in Jefferson County, contact the sheriff’s office directly or check available online inmate rosters. Inmate information may also be accessible through the Montana Department of Corrections.
Clerk of Court nameClerene Dukart
Clerk of Court address201 W Centennial Ave, Boulder, MT 59632

Jefferson County (MT) Statistics

Number of cities/towns/villages4
Population11,000
Area1,659 sq mi
Density7 /sq mi
Altitude4,500 ft
Median Household Income$61,000
Poverty rate9%
Unemployment rate4%
Educational Attainment (Bachelor's Degree or higher)30%

Environmental risk in Jefferson County, MT

Overall riskVery Low
Expected Annual LossVery Low
Social VulnerabilityVery Low
Community ResilienceRelatively Moderate
Avalanche RiskNot Applicable
Coastal Flooding RiskNot Applicable
Cold Wave RiskRelatively Low
Drought RiskVery Low
Earthquake RiskRelatively Low

Data obtained from the FEMA National Risk Index.

counties surrounding Jefferson

Broadwater 31.3 milesSilver Bow 31.9 milesDeer Lodge 47.1 miles
Madison 59.2 milesGallatin 61.2 milesPowell 63.2 miles

List of cities and towns in Jefferson County by population size

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Birth certificate - U.S. Vital Records