St. Xavier, Montana Demographics & Population 2026
During the 2020–2024 ACS period, St. Xavier, Montana had a total population of 55, the 380th largest community in Montana. The poverty rate is 38.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- More than 1 in 4 residents live below the poverty line (38.2%), well above the national average of 12.4%.
- Unemployment rate of 17.2% is notably above the national average.
St. Xavier Quick Facts
How St. Xavier 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 | 77 | 55 | -28.6% |
| Median home value | $197,500 | $202,900 | +2.7% |
How St. Xavier 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+)
St. Xavier Rankings in Montana
Explore Montana Rankings
Other Cities in Big Horn County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Hardin | 3,742 | $60,423 | 7.2% | $147,100 |
| Crow Agency | 2,192 | $52,339 | 39.2% | $58,800 |
| Muddy | 724 | N/A | 52.3% | $163,800 |
| Busby | 569 | $46,071 | 28.4% | $133,600 |
| Pryor | 497 | $47,083 | 36.4% | $90,700 |
| Wyola | 481 | $63,032 | 14.2% | $65,200 |
| Lodge Grass | 429 | $49,375 | 39.9% | $62,200 |
| Fort Smith | 78 | $51,190 | 0.0% | $119,600 |
Cities Similar to St. Xavier
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Helmville | 55 | $152,969 | $262,500 | 21.6% | 3.6% |
| Mountain View Colony | 55 | N/A | N/A | 21.6% | 51.3% |
| Turtle Lake | 55 | N/A | N/A | 39.5% | 10.9% |
| Raynesford | 54 | $75,000 | $400,000 | 17.9% | 0.0% |
| Martinsdale Colony | 57 | N/A | N/A | 0.0% | 45.6% |
A note before these figures: with a population of 55, St. Xavier'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
St. Xavier is a small community located in Montana, within Big Horn County. The total population is 55. It ranks as the 380th most populous out of 475 Census-designated places in Montana.
Age Demographics
The median age in St. Xavier is 40.8 years. This is about the same as the state median of 40.4 years.
Economy, Income & Housing
The poverty rate stands at 38.2%. This is 232% higher than the state poverty rate of 11.5%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 17.2%. This is 376% higher than the state rate of 3.6%. The median home value is $202,900. Housing costs are 46% lower than the state median of $375,800. 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 St. Xavier is White (non-Hispanic), making up 61.8% of the population.
Education
20.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 43% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample. Notably, 20.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for St. Xavier, 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.
Free data download: Get all Montana city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of St. Xavier, Montana?
St. Xavier, Montana has a population of 55 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in St. Xavier, MT?
The Census Bureau does not publish a reliable median household income estimate for St. Xavier — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in St. Xavier, MT?
The poverty rate in St. Xavier is 38.2%. This means approximately 21 residents live below the federal poverty line.
What is the racial makeup of St. Xavier, Montana?
St. Xavier's population is 61.8% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in St. Xavier, MT?
The median home value in St. Xavier is $202,900.
How educated is St. Xavier, Montana?
20.0% of adults (25+) in St. Xavier hold a bachelor's degree or higher, and 20.0% hold a graduate or professional degree.