County Maps US

Teton County, Montana

A county in Montana, ranked 32 of 56 by population.

CountyFIPS 30099

Within Montana
Teton County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Choteau, the county seat, located via the 2025 Census Gazetteer.

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Population
6,496
+244 (+3.9%) since 2020
Land area
2,272
square miles. A further 0.9% of the total area is water
Population density
2.9
people per square mile, computed rather than published
County seat
Choteau
Seat of county government.
Established
1893
132 years ago
Largest city
Choteau city
Population 1,825.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Teton County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Teton County, Montana from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 505 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Teton County ranks

Position among the 56 counties of Montana, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn MontanaNationally
Population6,49632nd of 562,701st of 3,144
Land area2,272 sq mi31st of 56245th of 3,144
Population density2.9 per sq mi28th of 562,915th of 3,144
Median household income$70,43018th of 561,167th of 3,143

Full data for Teton County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population6,496Vintage 2025 Population Estimates
Population in 20206,252Vintage 2025 Population Estimates
2020 estimates base?6,226Vintage 2025 Population Estimates
Land area2,272 sq mi2025 Gazetteer Files
Water area20.3 sq mi2025 Gazetteer Files
Total area2,292 sq mi2025 Gazetteer Files
Population density?2.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$70,430American Community Survey 2020-2024 5-Year Estimates
Median home value$264,000American Community Survey 2020-2024 5-Year Estimates
Median age42.3American Community Survey 2020-2024 5-Year Estimates
Households2,469American Community Survey 2020-2024 5-Year Estimates
Housing units2,945American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-5
75 births, 80 deaths
Net migration
+63
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 5 areas bordering Teton County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Lewis and Clark CountyMontana86 mi75,331
Pondera CountyMontana85 mi6,072
Cascade CountyMontana45 mi85,029
Flathead CountyMontana25 mi115,429
Chouteau CountyMontana20 mi5,865

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 56 counties of Montana

Open the interactive Montana county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.