Jefferson County, Administrative county in southwestern Montana, United States.
Jefferson County is an administrative county in southwestern Montana, positioned between the cities of Helena and Butte. The area includes portions of two national forests and supports a number of small communities within its boundaries.
The county was established in 1865 and named after President Thomas Jefferson. This founding occurred during a period of growth and development in the western United States.
The Boulder community functions as both the county seat and central location for governmental operations, serving a population of over 12,000 residents.
Major routes including Interstate 15, Interstate 90, U.S. Highway 12, and U.S. Highway 287 run through the county. These roads make it straightforward to travel between communities and reach neighboring regions.
The Sheriff's Office maintains a CodeRED emergency notification system that delivers immediate alerts about safety concerns to county inhabitants.
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