Town · Montana
Ennis, Montana
Ennis, town, in Madison County, Montana. Ennis had 1,126 residents on July 1, 2025 by the Census Bureau's estimate, up 22.0% since 2020; the 2020 Census counted 917 and the ACS 2020-2024 5-year estimates put it at 777 (±210). GEOID 3024475.
Residents, July 2025 estimate
1,126
Census Bureau estimate (no margin published)
2020 Census count: 917 · ACS 2020-2024: 777 ±210
Median household income
$69,650
±$11,464 (90% margin)
Montana: $72,509
Median home value
$402,500
±$54,786 (90% margin)
Montana: $375,800
Median gross rent
$854
±$297 (90% margin)
Montana: $1,081
Where is Ennis and what county is it in?
Ennis is a town in Madison County, Montana. It covers 0.7 square miles of land, 1,243 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Ennis, and is it growing?
The Census Bureau estimates that 1,126 people lived in Ennis on July 1, 2025, up 22.0% since 2020, faster than Montana (+5.6%). The 2020 Census counted 917 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 777 (±210).
| Measure | Ennis | Madison County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 777 ±210 | 9,223 | no clear change |
| Households | 373 ±93 | 3,740 | no clear change |
| Average household size | 2.02 ±0.36 | 2.42 | no clear change |
| Housing units | 544 ±110 | 6,396 | no clear change |
Ennis's population since 2000
From 840 in 2000 to 1,126 in 2025: up 34.0%. The 2000, 2010 and 2020 figures are census counts, each for Ennis as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Ennis?
The median resident of Ennis is 50.5 years old; 14.2% are under 18 and 30.1% are 65 or older. The largest group is non-Hispanic white residents at 86.2%, then non-Hispanic residents of two or more races at 9.3%.
| Measure | Ennis | Madison County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 50.5 ±10.8 | 52.2 | no clear change |
| Under 18 years | 14.2% ±6.7 pts | 16.3% | – |
| 65 years and over | 30.1% ±13.1 pts | 30.8% | – |
| Male | 50.6% ±7.0 pts | 52.7% | – |
| Hispanic or Latino (any race) | 4.2% ±5.3 pts | 3.7% | – |
| White alone, not Hispanic | 86.2% ±9.9 pts | 90.4% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±3.8 pts | 0.0% | – |
| Asian alone, not Hispanic | 0.0% ±3.8 pts | 0.5% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±3.8 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.8 pts | 0.0% | – |
| Two or more races, not Hispanic | 9.3% ±8.9 pts | 3.5% | – |
| Some other race alone, not Hispanic | 0.3% ±0.2 pts | 1.7% | – |
| Born outside the United States | 1.9% ±2.8 pts | 2.8% | – |
| Speak a language other than English at home (age 5+) | 9.0% ±7.4 pts | 4.3% | – |
| Civilian veterans (age 18+) | 12.0% ±7.2 pts | 9.8% | – |
| With a disability | 20.8% ±10.8 pts | 14.4% | – |
| No health insurance coverage | 10.7% ±7.9 pts | 7.1% | – |
| High school graduate or higher (age 25+) | 88.3% ±7.8 pts | 93.9% | – |
| Bachelor's degree or higher (age 25+) | 19.4% ±9.0 pts | 32.6% | no clear change |
| Graduate or professional degree (age 25+) | 5.8% ±5.1 pts | 8.3% | – |
| Lived in the same house a year earlier | 84.6% ±10.2 pts | 86.8% | – |
| Moved from another state in the past year | 0.0% ±3.8 pts | 4.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Ennis earn?
Half of Ennis's 373 households earn less than $69,650 a year (±$11,464), against $75,250 in Madison County and $72,509 in Montana. In 2015-2019 it was $56,957 in 2024 dollars; the margins of error cannot tell the two periods apart. 9.4% of residents live below the poverty line.
| Measure | Ennis | Madison County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $69,650 ±$11,464 | $75,250 | no clear change |
| Mean household income | $144,178 ±$87,482 | $98,856 | – |
| Per capita income | $59,411 ±$30,115 | $43,428 | no clear change |
| People below the poverty line | 9.4% ±4.9 pts | 6.2% | – |
| Children under 18 below the poverty line | 27.3% ±17.9 pts | 7.1% | – |
| Households receiving SNAP | 5.1% ±7.1 pts | 3.5% | – |
| Households with a computer | 88.7% ±9.9 pts | 93.7% | – |
| Households with a broadband subscription | 75.9% ±13.3 pts | 89.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Ennis?
Owners occupy 64.1% of Ennis's occupied homes and renters 35.9%. The median owner-occupied home is valued at $402,500 by its owner (±$54,786). The median renter pays $854 a month including utilities.
| Measure | Ennis | Madison County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $402,500 ±$54,786 | $470,100 | +$122,517 |
| Median gross rent | $854 ±$297 | $1,000 | no clear change |
| Renters paying 35% or more of income on rent | 17.9% ±20.2 pts | 25.7% | – |
| Median monthly owner costs, with a mortgage | $1,356 ±$220 | $1,742 | – |
| Owner-occupied homes | 64.1% ±15.3 pts | 81.0% | no clear change |
| Renter-occupied homes | 35.9% ±15.3 pts | 19.0% | – |
| Housing units | 544 ±110 | 6,396 | no clear change |
| Homeowner vacancy rate | 0.0% ±11.2 pts | 0.3% | – |
| Rental vacancy rate | 36.8% ±29.3 pts | 18.1% | – |
| Single-family detached homes | 75.2% ±11.2 pts | 79.1% | – |
| Mobile homes | 11.0% ±8.2 pts | 6.7% | – |
| Built 2020 or later | 0.0% ±5.4 pts | 1.7% | – |
| Built 2010 to 2019 | 25.6% ±15.9 pts | 19.2% | – |
| Built 1939 or earlier | 19.5% ±11.3 pts | 11.2% | – |
| Households with no vehicle | 3.2% ±3.4 pts | 1.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Ennis building?
Builders took permits for 5 new housing units in Ennis in 2025 (3 in single-family houses), 4.4 per 1,000 residents against 4.6 across Montana.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Ennis work and get to work?
76.0% of Ennis's workers drive alone. The average trip to work takes 22.5 minutes.
| Measure | Ennis | Madison County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 66.9% ±11.6 pts | 55.2% | – |
| Unemployment rate | 1.1% ±1.7 pts | 3.1% | – |
| Drove alone to work | 76.0% ±13.0 pts | 61.7% | – |
| Carpooled | 10.2% ±11.2 pts | 10.7% | – |
| Public transportation | 0.0% ±6.7 pts | 0.0% | – |
| Walked | 10.0% ±9.4 pts | 5.2% | – |
| Worked from home | 3.7% ±5.1 pts | 20.5% | – |
| Mean travel time to work | 22.5 min ±6.4 | 25.8 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Ennis?
No census tract lies mostly in Ennis; 2 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 1.01Madison County | 2,087 | $55,625 |
| Tract 1.02Madison County | 2,091 | $88,250 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Ennis) · Census block assignment files
How does Ennis compare with other places in Montana?
By the Census Bureau's July 2025 estimates, Ennis is the 9,814th-most populous of the 19,476 U.S. incorporated places that have one and the 54th-most populous of 127 in Montana.
Ennis is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 54th | 127 |
Ennis's figures with every place in Montana (CSV)
Every place in Montana, sortable · Compare Ennis with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Ennis?
24 of the 57 figures for Ennis on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Ennis are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Ennis.