Rimrock Colony, Montana Demographics & Population 2026
During the 2020–2024 ACS period, Rimrock Colony, Montana had a total population of 39, the 404th largest community in Montana. The poverty rate is 0.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Only 0.0% of adults have a bachelor's degree, well below the national average of 35.7%.
Rimrock Colony Quick Facts
How Rimrock Colony 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 | 157 | 39 | -75.2% |
How Rimrock Colony Compares
Median Household Income
Median Home Value
Economy & Housing
Employment
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 29 | National average: 61
Education
Educational Attainment (Adults 25+)
Rimrock Colony Rankings in Montana
Explore Montana Rankings
Other Cities in Toole County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Shelby | 3,216 | $58,413 | 13.8% | $232,700 |
| Sunburst | 301 | $65,938 | 14.6% | $139,600 |
| Hillside Colony | 245 | N/A | 0.0% | N/A |
| Camrose Colony | 126 | N/A | 71.4% | N/A |
| Kevin | 108 | $38,333 | 32.4% | $65,000 |
| Sweet Grass | 70 | $82,000 | 0.0% | N/A |
Cities Similar to Rimrock Colony
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Inverness | 39 | $61,875 | $181,300 | 23.1% | 0.0% |
| Neihart | 39 | $83,000 | $227,300 | 33.3% | 30.8% |
| De Borgia | 40 | N/A | N/A | 85.0% | 0.0% |
| Milford Colony | 40 | N/A | N/A | 0.0% | 100.0% |
| King Ranch Colony | 38 | N/A | N/A | 0.0% | 44.7% |
A note before these figures: with a population of 39, Rimrock Colony's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Rimrock Colony is a small community located in Montana, within Toole County. The total population is 39. It ranks as the 404th most populous out of 475 Census-designated places in Montana.
Age Demographics
Economy, Income & Housing
The ACS records no residents below the poverty line in Rimrock Colony. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Rimrock Colony, which reflects the size of the sample rather than a labor market without joblessness.
Race & Ethnicity
Rimrock Colony is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. The White (non-Hispanic) population (41.0%) is well below the state average of 83.6%.
Education
0.0% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 0.0%.
Data Sources & Methodology
All demographic data for Rimrock Colony, 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 Rimrock Colony, Montana?
Rimrock Colony, Montana has a population of 39 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Rimrock Colony, MT?
The Census Bureau does not publish a reliable median household income estimate for Rimrock Colony — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Rimrock Colony, MT?
The ACS sample for Rimrock Colony recorded no residents below the federal poverty line. Because the community is small, this indicates that the survey did not capture poverty here rather than that no poverty exists — the estimate carries a wide margin of error.
What is the racial makeup of Rimrock Colony, Montana?
Rimrock Colony's population is 41.0% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Rimrock Colony, MT?
The Census Bureau does not publish a reliable median home value estimate for Rimrock Colony — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Rimrock Colony, Montana?
0.0% of adults (25+) in Rimrock Colony hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.