City · Montana
Dillon, Montana
Dillon, city, in Beaverhead County, Montana. Dillon had 4,271 residents on July 1, 2025 by the Census Bureau's estimate, up 10.2% since 2020; the 2020 Census counted 3,880 and the ACS 2020-2024 5-year estimates put it at 4,085 (±22). GEOID 3020800.
Residents, July 2025 estimate
4,271
Census Bureau estimate (no margin published)
2020 Census count: 3,880 · ACS 2020-2024: 4,085 ±22
Median household income
$61,134
±$7,890 (90% margin)
Montana: $72,509
Median home value
$256,700
±$51,529 (90% margin)
Montana: $375,800
Median gross rent
$864
±$60 (90% margin)
Montana: $1,081
Where is Dillon and what county is it in?
Dillon is a city in Beaverhead County, Montana. It covers 1.9 square miles of land, 2,044 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 Dillon, and is it growing?
The Census Bureau estimates that 4,271 people lived in Dillon on July 1, 2025, up 10.2% since 2020, faster than Montana (+5.6%). The 2020 Census counted 3,880 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 4,085 (±22).
| Measure | Dillon | Beaverhead County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 4,085 ±22 | 9,713 | −176 |
| Households | 1,764 ±143 | 4,201 | no clear change |
| Average household size | 2.10 ±0.17 | 2.21 | no clear change |
| Housing units | 1,995 ±143 | 4,981 | no clear change |
Dillon's population since 2000
From 3,752 in 2000 to 4,271 in 2025: up 13.8%. The 2000, 2010 and 2020 figures are census counts, each for Dillon 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 Dillon?
The median resident of Dillon is 33.0 years old; 19.7% are under 18 and 18.0% are 65 or older. The largest group is non-Hispanic white residents at 87.9%, then non-Hispanic residents of two or more races at 4.2%.
| Measure | Dillon | Beaverhead County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 33.0 ±4.9 | 43.2 | no clear change |
| Under 18 years | 19.7% ±4.1 pts | 17.5% | – |
| 65 years and over | 18.0% ±3.8 pts | 23.8% | – |
| Male | 51.1% ±3.9 pts | 51.3% | – |
| Hispanic or Latino (any race) | 3.9% ±3.0 pts | 5.2% | – |
| White alone, not Hispanic | 87.9% ±3.2 pts | 89.1% | no clear change |
| Black or African American alone, not Hispanic | 1.2% ±1.5 pts | 0.5% | – |
| Asian alone, not Hispanic | 0.4% ±0.6 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 2.4% ±1.4 pts | 1.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.2% ±2.4 pts | 3.5% | – |
| Some other race alone, not Hispanic | 0.0% ±0.7 pts | 0.0% | – |
| Born outside the United States | 0.7% ±0.5 pts | 1.6% | – |
| Speak a language other than English at home (age 5+) | 4.4% ±2.6 pts | 4.0% | – |
| Civilian veterans (age 18+) | 7.1% ±2.1 pts | 8.1% | – |
| With a disability | 18.9% ±4.6 pts | 17.4% | – |
| No health insurance coverage | 2.1% ±1.8 pts | 4.3% | – |
| High school graduate or higher (age 25+) | 91.5% ±4.3 pts | 92.7% | – |
| Bachelor's degree or higher (age 25+) | 37.2% ±6.5 pts | 37.7% | no clear change |
| Graduate or professional degree (age 25+) | 11.3% ±3.7 pts | 10.4% | – |
| Lived in the same house a year earlier | 78.0% ±6.6 pts | 83.1% | – |
| Moved from another state in the past year | 7.1% ±3.7 pts | 5.2% | – |
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 Dillon earn?
Half of Dillon's 1,764 households earn less than $61,134 a year (±$7,890), against $61,268 in Beaverhead County and $72,509 in Montana. In 2015-2019 the median was $40,407 in 2024 dollars, so it rose by $20,727 after inflation. 11.5% of residents live below the poverty line.
| Measure | Dillon | Beaverhead County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $61,134 ±$7,890 | $61,268 | +$20,727 |
| Mean household income | $75,386 ±$10,614 | $79,753 | – |
| Per capita income | $33,331 ±$4,204 | $36,625 | +$6,583 |
| People below the poverty line | 11.5% ±4.5 pts | 11.4% | −15.3 pts |
| Children under 18 below the poverty line | 0.0% ±4.2 pts | 7.2% | – |
| Households receiving SNAP | 10.0% ±5.2 pts | 7.2% | – |
| Households with a computer | 96.1% ±2.4 pts | 95.8% | – |
| Households with a broadband subscription | 90.5% ±4.7 pts | 90.4% | – |
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 Dillon?
Owners occupy 55.7% of Dillon's occupied homes and renters 44.3%. The median owner-occupied home is valued at $256,700 by its owner (±$51,529). The median renter pays $864 a month including utilities, and 28.1% of renters pay 35% or more of their income on rent.
| Measure | Dillon | Beaverhead County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $256,700 ±$51,529 | $308,300 | +$55,358 |
| Median gross rent | $864 ±$60 | $837 | no clear change |
| Renters paying 35% or more of income on rent | 28.1% ±11.3 pts | 29.7% | −34.4 pts |
| Median monthly owner costs, with a mortgage | $1,477 ±$200 | $1,476 | – |
| Owner-occupied homes | 55.7% ±7.7 pts | 65.8% | no clear change |
| Renter-occupied homes | 44.3% ±7.7 pts | 34.2% | – |
| Housing units | 1,995 ±143 | 4,981 | no clear change |
| Homeowner vacancy rate | 0.0% ±2.8 pts | 0.5% | – |
| Rental vacancy rate | 8.4% ±7.5 pts | 4.9% | – |
| Single-family detached homes | 63.8% ±8.6 pts | 70.1% | – |
| Mobile homes | 13.9% ±5.6 pts | 17.5% | – |
| Built 2020 or later | 3.8% ±4.2 pts | 2.5% | – |
| Built 2010 to 2019 | 4.8% ±3.8 pts | 6.7% | – |
| Built 1939 or earlier | 16.7% ±5.4 pts | 13.5% | – |
| Households with no vehicle | 1.1% ±1.5 pts | 0.8% | – |
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 Dillon building?
Builders took permits for 42 new housing units in Dillon in 2025 (10 in single-family houses), 9.8 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 Dillon work and get to work?
74.7% of Dillon's workers drive alone. The average trip to work takes 16.7 minutes.
| Measure | Dillon | Beaverhead County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.3% ±5.4 pts | 56.6% | – |
| Unemployment rate | 1.2% ±1.8 pts | 1.3% | – |
| Drove alone to work | 74.7% ±7.5 pts | 72.8% | – |
| Carpooled | 12.6% ±6.2 pts | 10.4% | – |
| Public transportation | 2.7% ±3.4 pts | 1.3% | – |
| Walked | 2.8% ±2.1 pts | 3.8% | – |
| Worked from home | 3.1% ±2.2 pts | 9.2% | – |
| Mean travel time to work | 16.7 min ±4.9 | 19.3 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 Dillon?
1 census tract lies mostly in Dillon, and 1 more reaches into it (2020 census blocks).
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 Dillon) · Census block assignment files
How does Dillon compare with other places in Montana?
By the Census Bureau's July 2025 estimates, Dillon is the 5,342nd-most populous of the 19,476 U.S. incorporated places that have one and the 21st-most populous of 127 in Montana.
Dillon ranks 55th of 90 places in Montana with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 21st | 127 |
| Growth 2020-2025 (PEP) | 16th | 53 |
| Residents per square mile | 17th | 93 |
| Median household income | 55th | 90 |
| Per capita income | 62nd | 93 |
| Median home value | 48th | 89 |
| Median gross rent | 53rd | 82 |
| Poverty rate | 39th | 65 |
| Bachelor's degree or higher | 19th | 90 |
| Median age | 76th | 93 |
| Owner-occupied share | 78th | 92 |
| Travel time to work | 51st | 93 |
Dillon's figures with every place in Montana (CSV)
Every place in Montana, sortable · Compare Dillon 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 Dillon?
17 of the 57 figures for Dillon 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 Dillon 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 Dillon.