Jefferson County, Montana Genealogy Guide

Jefferson County, Montana (Map It) was created on February 02, 1865 from Montana Territory as a Original County. The county was named in honor of Thomas Jefferson (1743 - 1826), the third President of the United States. Learn More About State of Montana History

Jefferson County is bordered by Lewis and Clark County (north), Broadwater County (east), Gallatin County, Madison County (south), Silver Bow County (west), Deer Lodge County (west), Powell County.

Jefferson County Cities and Towns include Boulder, Whitehall. A Map of Jefferson County, Montana contains detailed information about roads and boundaries, these maps may include rural communities, churches, and cemeteries.

Jefferson County, Montana Courthouse Records

Jefferson County, Montana Courthouse
Jefferson County, MT Courthouse

The Jefferson County Courthouse is located in Boulder, Montana. Learn More About State of Montana Court, Tax, Land and Probate Records.

Please contact the each clerk's department to confirm mailing address, hours, fees and other information before visiting or requesting information because contact information sometimes changes.  The Clerk's Office DOES NOT DO RESEARCH.  The documents are available to interested parties, barring confidential issues.  Most staff will assist people in finding the materials, but it is up to the individual to do the research.

The following dates indicates what vital, land, probate, and court records are in Jefferson county. The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered.

  • Jefferson County Clerk and Recorder has Birth / Death Records from 1895 and Land Records from 1865. The County Clerk and Recorder responsibilities include but are not limited to, recording and maintaining the majority of all the legal documents relating to real estate records, land descriptions, plats and surveys, county birth and death records and the records of the Board of County commissioners.
  • Jefferson County Clerk of District Court has Marriage / Divorce Records from 1866, Probate Records from 1865  and Court Records from 1865. The County Clerk of District Court is responsible for all District Court records. These records include Adoption, Civil, Criminal, Dependent Neglect, Domestic Relations, Guardianship, Juvenile, Paternity, Probate and Sanity cases. The clerk also issues, files and records all Madison County Marriage license applications and license.

Jefferson County, Montana Census Records

Jefferson County, Montana Vital Records

Jefferson County, Montana Resources

Jefferson County, Montana External Links