Sun Prairie, Montana Demographics & Population 2026
During the 2020–2024 ACS period, Sun Prairie, Montana had a total population of 1,171, the 84th largest community in Montana, with a median household income of $55,688, which is 23% lower than the state average. The poverty rate is 9.9%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Sun Prairie Quick Facts
How Sun Prairie Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 1,514 | 1,171 | -22.7% |
| Median household income | $61,004 | $55,688 | -8.7% |
| Median home value | $156,800 | $164,100 | +4.7% |
How Sun Prairie Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 29 | National average: 61
Education
Educational Attainment (Adults 25+)
Sun Prairie Rankings in Montana
Explore Montana Rankings
Other Cities in Cascade County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Great Falls | 60,329 | $63,373 | 14.5% | $257,000 |
| Malmstrom AFB | 4,302 | $64,833 | 5.8% | N/A |
| Vaughn | 1,002 | $56,250 | 8.7% | $175,300 |
| Ulm | 900 | $102,708 | 6.9% | $369,400 |
| Black Eagle | 781 | $69,545 | 31.4% | $190,400 |
| Cascade | 572 | $50,938 | 7.9% | $247,600 |
| Belt | 559 | $73,929 | 8.2% | $171,700 |
| Simms | 334 | $42,292 | 5.7% | $237,500 |
| Fort Shaw | 207 | $56,413 | 17.9% | $184,500 |
| Gibson Flats | 158 | N/A | 74.1% | N/A |
Cities Similar to Sun Prairie
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Somers | 1,280 | $56,917 | $465,400 | 32.0% | 8.0% |
| Harlowton | 1,058 | $55,600 | $180,500 | 19.6% | 18.6% |
| Whitehall | 1,156 | $44,844 | $194,100 | 20.0% | 20.6% |
| Fort Belknap Agency | 1,227 | $46,071 | $72,700 | 8.9% | 29.4% |
| Vaughn | 1,002 | $56,250 | $175,300 | 16.4% | 8.7% |
Population Overview
Sun Prairie is a small community located in Montana, within Cascade County. The total population is 1,171. It ranks as the 84th most populous out of 475 Census-designated places in Montana.
Age Demographics
The median age in Sun Prairie is 49.0 years. This is 21% higher than the state median of 40.4 years.
Economy, Income & Housing
The median household income in Sun Prairie is $55,688. This is 23% lower than the state median of $72,509. It is also 31% lower than the national median of $80,734. The poverty rate stands at 9.9%. This is 14% lower than the state poverty rate of 11.5%. The survey records no unemployed residents in Sun Prairie, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $164,100. Housing costs are 56% lower than the state median of $375,800. With a home-value-to-income ratio of just 2.9x, Sun Prairie is one of the most affordable housing markets in the area. 99.3% of occupied housing units are owner-occupied. This homeownership rate is 44% higher than the state average of 69.2%.
Race & Ethnicity
Sun Prairie has a predominantly White (non-Hispanic) population, comprising 90.2% of all residents. Asian residents account for 3.3%. The Hispanic or Latino population (0.4%) is well below the state average of 4.6%. The Asian population is significantly higher than the state average (3.3% vs 0.8%).
Education
27.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.2%.
Data Sources & Methodology
All demographic data for Sun Prairie, Montana is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Montana state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 475 Census-designated places in Montana. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Sun Prairie, Montana?
Sun Prairie, Montana has a population of 1,171 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Sun Prairie, MT?
The median household income in Sun Prairie is $55,688, which is 31% lower than the national median of $80,734.
What is the poverty rate in Sun Prairie, MT?
The poverty rate in Sun Prairie is 9.9%. This means approximately 115 residents live below the federal poverty line.
What is the racial makeup of Sun Prairie, Montana?
Sun Prairie's population is 90.2% White, 0.0% Black, 0.4% Hispanic/Latino, and 3.3% Asian.
What is the median home value in Sun Prairie, MT?
The median home value in Sun Prairie is $164,100. The home-value-to-income ratio is 2.9x.
How educated is Sun Prairie, Montana?
27.6% of adults (25+) in Sun Prairie hold a bachelor's degree or higher, and 9.2% hold a graduate or professional degree.