Cyr, Montana Demographics & Population 2026
During the 2020–2024 ACS period, Cyr, Montana had a total population of 108, the 322nd largest community in Montana. The poverty rate is 12.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Cyr Quick Facts
How Cyr 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 | 99 | 108 | +9.1% |
How Cyr 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+)
Cyr Rankings in Montana
Explore Montana Rankings
Other Cities in Mineral County
Cities Similar to Cyr
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Kevin | 108 | $38,333 | $65,000 | 0.0% | 32.4% |
| New Rockport Colony | 110 | N/A | N/A | 5.1% | 78.7% |
| Rhodes | 110 | $61,583 | N/A | 22.1% | 10.9% |
| Wisdom | 110 | $61,198 | N/A | 16.3% | 5.5% |
| Box Elder | 106 | $42,857 | N/A | 17.4% | 0.0% |
A note before these figures: with a population of 108, Cyr'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
Cyr is a small community located in Montana, within Mineral County. The total population is 108. It ranks as the 322nd most populous out of 475 Census-designated places in Montana.
Age Demographics
The median age in Cyr is 50.6 years. This is 25% higher than the state median of 40.4 years. Only 6.5% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The poverty rate stands at 12.0%. This is 5% higher than the state poverty rate of 11.5%. The survey records no unemployed residents in Cyr, which reflects the size of the sample rather than a labor market without joblessness. 69.0% of occupied housing units are owner-occupied.
Race & Ethnicity
Cyr has a predominantly White (non-Hispanic) population, comprising 94.4% of all residents.
Education
20.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 41% 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.
Data Sources & Methodology
All demographic data for Cyr, 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 Cyr, Montana?
Cyr, Montana has a population of 108 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Cyr, MT?
The Census Bureau does not publish a reliable median household income estimate for Cyr — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Cyr, MT?
The poverty rate in Cyr is 12.0%. This means approximately 13 residents live below the federal poverty line.
What is the racial makeup of Cyr, Montana?
Cyr's population is 94.4% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Cyr, MT?
The Census Bureau does not publish a reliable median home value estimate for Cyr — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Cyr, Montana?
20.8% of adults (25+) in Cyr hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.