Town · Montana
Fairfield, Montana
Fairfield, town, in Teton County, Montana. Fairfield had 797 residents on July 1, 2025 by the Census Bureau's estimate, up 3.9% since 2020; the 2020 Census counted 759 and the ACS 2020-2024 5-year estimates put it at 759 (±122). GEOID 3025225.
Residents, July 2025 estimate
797
Census Bureau estimate (no margin published)
2020 Census count: 759 · ACS 2020-2024: 759 ±122
Median household income
$69,265
±$15,494 (90% margin)
Montana: $72,509
Median home value
$217,400
±$16,169 (90% margin)
Montana: $375,800
Median gross rent
$674
±$180 (90% margin)
Montana: $1,081
Where is Fairfield and what county is it in?
Fairfield is a town in Teton County, Montana. It covers 0.3 square miles of land, 2,410 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 Fairfield, and is it growing?
The Census Bureau estimates that 797 people lived in Fairfield on July 1, 2025, up 3.9% since 2020, slower than Montana (+5.6%). The 2020 Census counted 759 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 759 (±122).
| Measure | Fairfield | Teton County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 759 ±122 | 6,353 | no clear change |
| Households | 318 ±65 | 2,469 | no clear change |
| Average household size | 2.36 ±0.32 | 2.43 | no clear change |
| Housing units | 339 ±63 | 2,945 | no clear change |
Fairfield's population since 2000
From 659 in 2000 to 797 in 2025: up 20.9%. The 2000, 2010 and 2020 figures are census counts, each for Fairfield 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 Fairfield?
The median resident of Fairfield is 31.8 years old; 29.4% are under 18 and 11.5% are 65 or older. The largest group is non-Hispanic white residents at 94.5%, then non-Hispanic residents of two or more races at 3.8%.
| Measure | Fairfield | Teton County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 31.8 ±4.0 | 42.3 | no clear change |
| Under 18 years | 29.4% ±6.0 pts | 25.0% | – |
| 65 years and over | 11.5% ±5.9 pts | 23.1% | – |
| Male | 48.1% ±5.8 pts | 49.4% | – |
| Hispanic or Latino (any race) | 0.0% ±3.9 pts | 2.0% | – |
| White alone, not Hispanic | 94.5% ±2.3 pts | 91.5% | no clear change |
| Black or African American alone, not Hispanic | 1.7% ±0.9 pts | 0.3% | – |
| Asian alone, not Hispanic | 0.0% ±3.9 pts | 0.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±3.9 pts | 1.9% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.9 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.8% ±2.1 pts | 4.1% | – |
| Some other race alone, not Hispanic | 0.0% ±3.9 pts | 0.2% | – |
| Born outside the United States | 1.4% ±1.2 pts | 0.4% | – |
| Speak a language other than English at home (age 5+) | 3.7% ±3.5 pts | 6.8% | – |
| Civilian veterans (age 18+) | 1.3% ±1.3 pts | 7.6% | – |
| With a disability | 2.7% ±2.4 pts | 11.7% | – |
| No health insurance coverage | 4.3% ±2.8 pts | 5.4% | – |
| High school graduate or higher (age 25+) | 92.7% ±6.4 pts | 91.5% | – |
| Bachelor's degree or higher (age 25+) | 27.4% ±9.2 pts | 26.8% | no clear change |
| Graduate or professional degree (age 25+) | 11.8% ±4.4 pts | 8.9% | – |
| Lived in the same house a year earlier | 87.5% ±7.7 pts | 88.0% | – |
| Moved from another state in the past year | 3.5% ±3.8 pts | 3.6% | – |
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 Fairfield earn?
Half of Fairfield's 318 households earn less than $69,265 a year (±$15,494), against $70,430 in Teton County and $72,509 in Montana. In 2015-2019 it was $70,522 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Fairfield | Teton County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $69,265 ±$15,494 | $70,430 | no clear change |
| Mean household income | $72,257 ±$8,321 | $83,258 | – |
| Per capita income | $31,207 ±$4,089 | $32,798 | no clear change |
| People below the poverty line | 5.2% ±4.3 pts | 13.4% | – |
| Children under 18 below the poverty line | 1.8% ±3.5 pts | 18.6% | – |
| Households receiving SNAP | 14.2% ±9.1 pts | 4.8% | – |
| Households with a computer | 79.9% ±10.8 pts | 90.8% | – |
| Households with a broadband subscription | 73.9% ±11.1 pts | 85.0% | – |
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 Fairfield?
Owners occupy 66.0% of Fairfield's occupied homes and renters 34.0%. The median owner-occupied home is valued at $217,400 by its owner (±$16,169). The median renter pays $674 a month including utilities.
| Measure | Fairfield | Teton County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $217,400 ±$16,169 | $264,000 | +$38,826 |
| Median gross rent | $674 ±$180 | $730 | no clear change |
| Renters paying 35% or more of income on rent | 23.9% ±22.5 pts | 28.5% | – |
| Median monthly owner costs, with a mortgage | $1,247 ±$202 | $1,485 | – |
| Owner-occupied homes | 66.0% ±12.9 pts | 75.5% | no clear change |
| Renter-occupied homes | 34.0% ±12.9 pts | 24.5% | – |
| Housing units | 339 ±63 | 2,945 | no clear change |
| Homeowner vacancy rate | 3.6% ±6.0 pts | 0.8% | – |
| Rental vacancy rate | 0.0% ±22.7 pts | 4.8% | – |
| Single-family detached homes | 72.3% ±11.8 pts | 83.2% | – |
| Mobile homes | 10.0% ±4.6 pts | 8.6% | – |
| Built 2020 or later | 0.0% ±8.5 pts | 0.2% | – |
| Built 2010 to 2019 | 2.9% ±3.1 pts | 4.0% | – |
| Built 1939 or earlier | 3.2% ±3.6 pts | 23.2% | – |
| Households with no vehicle | 10.4% ±8.6 pts | 6.2% | – |
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 Fairfield building?
Builders took permits for 0 new housing units in Fairfield in 2025 (0 in single-family houses), 0.0 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 Fairfield work and get to work?
75.9% of Fairfield's workers drive alone and 17.3% work from home. The average trip to work takes 19.6 minutes.
| Measure | Fairfield | Teton County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 73.6% ±7.7 pts | 59.9% | – |
| Unemployment rate | 3.9% ±5.1 pts | 1.0% | – |
| Drove alone to work | 75.9% ±7.1 pts | 63.3% | – |
| Carpooled | 0.5% ±0.7 pts | 11.7% | – |
| Public transportation | 0.0% ±7.0 pts | 1.5% | – |
| Walked | 6.3% ±5.1 pts | 7.1% | – |
| Worked from home | 17.3% ±6.0 pts | 15.1% | – |
| Mean travel time to work | 19.6 min ±4.7 | 21.8 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 Fairfield?
No census tract lies mostly in Fairfield; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 2Teton County | 2,015 | $80,489 |
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 Fairfield) · Census block assignment files
How does Fairfield compare with other places in Montana?
By the Census Bureau's July 2025 estimates, Fairfield is the 11,259th-most populous of the 19,476 U.S. incorporated places that have one and the 66th-most populous of 127 in Montana.
Fairfield 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 | 66th | 127 |
Fairfield's figures with every place in Montana (CSV)
Every place in Montana, sortable · Compare Fairfield 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 Fairfield?
23 of the 57 figures for Fairfield 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 Fairfield 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 Fairfield.