Teton County, Montana Genealogy Records

Selected record inventories for Teton County, their listed years, and where to ask for access.

Selected inventory review: 2026-11-02. Selected newspaper catalog metadata checked for state and county attribution. Publication dates do not establish complete issue holdings or online access. Library of Congress newspaper directory

Formed
1893
County seat
Choteau
Beaverhead CountyBig Horn CountyBlaine CountyBroadwater CountyCarbon CountyCascade CountyDeer Lodge CountyFergus CountyFlathead CountyGallatin CountyGarfield CountyGlacier CountyGolden Valley CountyGranite CountyHill CountyJefferson CountyJudith Basin CountyLake CountyLewis and Clark CountyLiberty CountyLincoln CountyMadison CountyMeagher CountyMineral CountyMusselshell CountyPark CountyPetroleum CountyPhillips CountyPondera CountyPowell CountyRavalli CountyRosebud CountySanders CountySilver Bow CountyStillwater CountySweet Grass CountyToole CountyWheatland CountyYellowstone CountyChouteau CountyMissoula CountyTeton CountyBlaineCascadeFergusFlatheadGarfieldGlacierHillLakeLincolnMeagherMineralPhillipsPowellRavalliRosebudSandersTooleChouteauMissoulaTeton
Teton CountyParent counties (search here for earlier records)Today's boundaries ยท U.S. Census Bureau

Listed record inventories

Selected holdings and indexes for Teton County, checked against the repository descriptions linked below. Date spans may contain gaps; an index is not a complete set of original records.

See the repository's descriptions and search options

Repository access note: Selected newspaper titles cataloged by the Library of Congress with explicit county geography. Priority is given to titles beginning by 1950; up to five later titles are included where no earlier dated title is listed for that county. Dates describe publication history, not the issues available at a library. Multiple format records with the same title, place and dates are grouped. The catalog may describe paper, microfilm or online resources. Open ends and the word Current reflect the catalog description; confirm present availability and exact holdings with the libraries listed on the linked record.

Sources: the catalogs and repository descriptions linked on the entries above. Selected inventories do not establish complete coverage of every record type or online access to original documents. Read the repository access note for source dates and limitations.

Where to find the records

Offices change their hours and access rules; call before you visit.

Boundaries and parent counties

Formed from: Choteau County (now Chouteau), Missoula County

Check the parent counties for earlier records: Chouteau County, Missoula County

Later formed partly from Teton County: Glacier County, Pondera County, Toole County

MadisonBeaverheadSilver BowCusterGallatinParkMeagherLewis And ClarkCascadeYellowstone National Park (part)FergusDawsonJeffersonDeer LodgeYellowstoneNon-County Area 2MissoulaChoteauTetonTetonMissoulaChoteauCusterParkMeagherFergusDawson
Teton as created in 1893Where its land was the day beforeToday's boundaryBoundaries: Newberry Library, Atlas of Historical County Boundaries

Records stay with the county that created them. If your ancestor lived here before 1893, search the parent county. The Atlas of Historical County Boundaries shows each boundary change.

Research tip

Montana began statewide registration of births and deaths in 1907. Before 1864 its land was part of Idaho, Dakota, Washington and other territories.