Greycliff, Montana Demographics & Population 2026
During the 2020–2024 ACS period, Greycliff, Montana had a total population of 158, the 274th largest community in Montana, with a median household income of $70,417, which is 3% lower than the state average. The poverty rate is 4.4%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- An exceptionally low poverty rate of 4.4% — among the lowest in Montana.
- Only 6.1% of adults have a bachelor's degree, well below the national average of 35.7%.
Greycliff Quick Facts
How Greycliff 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 | 94 | 158 | +68.1% |
| Median household income | $90,650 | $70,417 | -22.3% |
How Greycliff 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
Moderate diversity with one or two groups making up the majority.
State average: 29 | National average: 61
Education
Educational Attainment (Adults 25+)
Greycliff Rankings in Montana
Explore Montana Rankings
Other Cities in Sweet Grass County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Big Timber | 1,611 | $66,898 | 10.4% | $278,200 |
Cities Similar to Greycliff
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Gibson Flats | 158 | N/A | N/A | 0.0% | 74.1% |
| Little Bitterroot Lake | 156 | N/A | $611,100 | 19.7% | 17.3% |
| Stockett | 155 | $70,938 | $215,000 | 27.2% | 9.0% |
| Charlos Heights | 163 | N/A | $2,000,000+ | 14.1% | 4.9% |
| Rocky Point | 151 | N/A | $643,800 | 54.3% | 0.0% |
A note before these figures: with a population of 158, Greycliff'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
Greycliff is a small community located in Montana, within Sweet Grass County. The total population is 158. It ranks as the 274th most populous out of 475 Census-designated places in Montana.
Age Demographics
The median age in Greycliff is 30.4 years. This is 25% lower than the state median of 40.4 years. With 35.4% of the population under 18, Greycliff has a notably young demographic profile, suggesting a family-oriented community. 13.3% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Greycliff is $70,417. This is 3% lower than the state median of $72,509. It is also 13% lower than the national median of $80,734. The poverty rate stands at 4.4%. This is 62% lower than the state poverty rate of 11.5%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Greycliff, which reflects the size of the sample rather than a labor market without joblessness. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 45% higher than the state average of 69.2%.
Race & Ethnicity
The largest racial or ethnic group in Greycliff is White (non-Hispanic), making up 63.9% of the population. Asian residents account for 4.4%. The Hispanic or Latino population (1.9%) is well below the state average of 4.6%. The Asian population is significantly higher than the state average (4.4% vs 0.8%).
Education
6.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 83% 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 97.6%.
Data Sources & Methodology
All demographic data for Greycliff, 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 Greycliff, Montana?
Greycliff, Montana has a population of 158 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Greycliff, MT?
The median household income in Greycliff is $70,417, which is 13% lower than the national median of $80,734.
What is the poverty rate in Greycliff, MT?
The poverty rate in Greycliff is 4.4%. This means approximately 7 residents live below the federal poverty line.
What is the racial makeup of Greycliff, Montana?
Greycliff's population is 63.9% White, 0.0% Black, 1.9% Hispanic/Latino, and 4.4% Asian.
What is the median home value in Greycliff, MT?
The Census Bureau does not publish a reliable median home value estimate for Greycliff — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Greycliff, Montana?
6.1% of adults (25+) in Greycliff hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.