Fergus County, Montana Demographics 2026
Fergus County, Montana has a population of 11,687, the 18th most populous county in Montana. The median household income is $63,706 and the median home value is $236,100. The poverty rate is 15.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Fergus County Quick Facts
How Fergus County 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 | 11,581 | 11,687 | +0.9% |
| Median household income | $59,731 | $63,706 | +6.7% |
| Median home value | $202,700 | $236,100 | +16.5% |
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+)
Cities & Places in Fergus County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Lewistown | 6,087 | $48,750 | 20.9% | $198,400 |
| Lewistown Heights | 488 | $89,931 | 6.2% | $314,300 |
| Winifred | 263 | $78,393 | 4.7% | $120,000 |
| Moore | 224 | $49,792 | 22.3% | $183,000 |
| Denton | 193 | $56,667 | 6.7% | $157,800 |
| Roy | 129 | $51,875 | 36.5% | N/A |
| Grass Range | 125 | $20,000 | 39.2% | N/A |
| Coffee Creek | 61 | $85,833 | 0.0% | $276,700 |
| Warm Spring Creek | 46 | N/A | 30.4% | N/A |
| King Ranch Colony | 38 | N/A | 44.7% | N/A |
| Deerfield Colony | 34 | N/A | 69.6% | N/A |
| Spring Creek Colony | 27 | N/A | 59.3% | N/A |
| Ayers Ranch Colony | 8 | N/A | 0.0% | N/A |
| Danvers | 6 | N/A | 0.0% | N/A |
Explore Montana Rankings
Population Overview
Fergus County is located in Montana with a total population of 11,687. It is the 18th most populous county out of 56 in Montana. The county encompasses 14 Census-designated places.
Age Demographics
The median age in Fergus County is 44.4 years. This is 10% higher than the state median of 40.4 years. 10.4% 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 Fergus County is $63,706. This is 12% lower than the state median of $72,509. It is also 21% lower than the national median of $80,734. The poverty rate stands at 15.1%. This is 31% higher than the state poverty rate of 11.5%. The unemployment rate is 4.2%. This is 16% higher than the state rate of 3.6%. The median home value is $236,100. Housing costs are 37% lower than the state median of $375,800. The home-value-to-income ratio is 3.7x. 63.4% of occupied housing units are owner-occupied. This homeownership rate is 8% lower than the state average of 69.2%.
Race & Ethnicity
Fergus County has a predominantly White (non-Hispanic) population, comprising 92.4% of all residents. Hispanic or Latino residents account for 2.4%.
Education
24.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 32% 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 95.1%.
Data Sources & Methodology
All figures for Fergus County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Montana and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Fergus County, Montana?
Fergus County has a population of 11,687, making it the 18th most populous county in Montana.
What is the median income in Fergus County?
The median household income in Fergus County is $63,706 with a poverty rate of 15.1%.
How many cities are in Fergus County, Montana?
Fergus County contains 14 Census-designated places.