County Maps US

Garfield County, Montana

A county in Montana, ranked 51 of 56 by population.

CountyFIPS 30033

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

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Population
1,148
-22 (-1.9%) since 2020
Land area
4,677
square miles. A further 3.6% of the total area is water
Population density
0.25
people per square mile, computed rather than published
County seat
Jordan
Seat of county government.
Established
1919
106 years ago
Largest city
Jordan town
Population 348.

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 Garfield 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 Garfield 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 724 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 Garfield 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
Population1,14851st of 563,101st of 3,144
Land area4,677 sq mi7th of 5693rd of 3,144
Population density0.25 per sq mi56th of 563,132nd of 3,144
Median household income$69,58322nd of 561,230th of 3,143

Full data for Garfield County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population1,148Vintage 2025 Population Estimates
Population in 20201,170Vintage 2025 Population Estimates
2020 estimates base?1,170Vintage 2025 Population Estimates
Land area4,677 sq mi2025 Gazetteer Files
Water area172.5 sq mi2025 Gazetteer Files
Total area4,849 sq mi2025 Gazetteer Files
Population density?0.25 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$69,583American Community Survey 2020-2024 5-Year Estimates
Median home value$169,900American Community Survey 2020-2024 5-Year Estimates
Median age43.3American Community Survey 2020-2024 5-Year Estimates
Households432American Community Survey 2020-2024 5-Year Estimates
Housing units730American 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
-1
14 births, 15 deaths
Net migration
-26
More people moved out than moved in.

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

The 7 areas bordering Garfield 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
Petroleum CountyMontana102 mi548
Rosebud CountyMontana87 mi8,253
Valley CountyMontana74 mi7,385
McCone CountyMontana73 mi1,720
Phillips CountyMontana45 mi4,203
Prairie CountyMontana22 mi1,112
Custer CountyMontana1.0 mi12,034

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.