• county
  • FIPS 30079

Prairie County, Montana

Prairie County had 1,112 residents in the Census Vintage 2024 estimate, on 1,736.6 square miles of land. It ranks 52nd of 56 in Montana by population and 39th by land area.

Population
1,112
#52 of 56 in Montana · #3,103 in US
Area
1,736.6 sq mi
#39 of 56 in Montana · #343 in US
Density
0.6 / sq mi
#52 of 56 in Montana · #3,107 in US
Median household income
$52,555
#46 of 56 in Montana · #2,511 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Prairie County within Montana. Pin: Helena.

Prairie County population, land area and income

Prairie County had 1,112 residents in the Census Vintage 2024 estimate, on 1,736.6 square miles of land. It ranks 52nd of 56 in Montana by population and 39th by land area. That works out to 0.6 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Montana has 7,814 residents, so Prairie County has 14% of the typical county's population.

Its SAIPE 2023 median household income of $52,555 is in the bottom quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

1,112

3144th1st

3103rd of 3,144 (US)

Land area

1,737 sq mi

3144th1st

343rd of 3,144 (US)

Density

0.6 / sq mi

3144th1st

3107th of 3,144 (US)

Median household income

$52,555

3143rd1st

2511th of 3,143 (US)

Rank within Montana (56)

Population

1,112

56th1st

52nd of 56 (MT)

Land area

1,737 sq mi

56th1st

39th of 56 (MT)

Density

0.6 / sq mi

56th1st

52nd of 56 (MT)

Median household income

$52,555

56th1st

46th of 56 (MT)

How Prairie County's population changed since 2020

Prairie County gained 22 residents between the July 2020 and July 2024 estimates, a rise of 2.0%. That ranks 33rd of 56 in Montana for growth. The median Montana county changed by +2.8%, and the state as a whole by +4.6%.

Since the April 2020 estimates base, Prairie County recorded 61 births and 92 deaths, a natural change of -31. Net international migration added +6 and net domestic migration, people moving to or from other US counties, came to +48. The largest single component was domestic migration, which added 48 people.

1,09020201,09620211,11420221,11520231,1122024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
61
Deaths
92
Net international migration
+6
Net domestic migration
+48
Change, July 2023 to July 2024
-3

Where Prairie County is

The Census internal point of Prairie County is at 46.812400, -105.503900. It sits in UTM zone 13N. The map shades Montana's 56 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Prairie County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Prairie County

No incorporated place of 1,000 or more people has residents in Prairie County. Its 1,112 residents live in smaller towns, census-designated places, or unincorporated land, which the subcounty estimates do not list at this size.

Counties bordering Prairie County

The Census 2024 county adjacency file lists 6 neighbors for Prairie County. The most populous is Custer County, MT, with 11,964 residents. Distances run between Census internal points in a straight line.

Distance to Helena and the nearest big city

Helena is 308.9 miles W of Prairie County's internal point in a straight line. The nearest place of 100,000 or more is Billings, MT (population 121,483), 161.8 miles away. The nearest place of 10,000 or more is Dickinson, ND (population 25,695), 128.1 miles away.

Prairie County FIPS code

The FIPS code of Prairie County is 30079: state code 30 for Montana plus county code 079. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $52,555.

Questions people ask

What is the population of Prairie County, Montana?

The Census Vintage 2024 estimate for July 1, 2024 is 1,112. That is up 22 people (2.0%) from the July 2020 estimate of 1,090.

What is the FIPS code of Prairie County?

30079. The first two digits (30) are Montana; the last three (079) identify the county.

What is the largest town in Prairie County?

No incorporated place of 1,000 or more people has residents in Prairie County. Its people live in smaller towns, census-designated places or unincorporated land.

Which counties border Prairie County?

6 county-equivalents border it in the Census 2024 adjacency file: Custer County, MT; Dawson County, MT; Fallon County, MT; McCone County, MT; Garfield County, MT; Wibaux County, MT.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.