Census-designated place · Colorado
Fairmount, Colorado
Fairmount, census-designated place, in Jefferson County, Colorado. Fairmount had 9,902 people in the ACS 2020-2024 5-year estimates (±963). GEOID 0825550.
Residents, 2020-2024
9,902
±963 (90% margin)
2020 Census count: 9,324
Median household income
$163,600
±$17,599 (90% margin)
Colorado: $95,470
Median home value
$827,600
±$37,490 (90% margin)
Colorado: $539,400
Median gross rent
$2,679
±$797 (90% margin)
Colorado: $1,761
Where is Fairmount and what county is it in?
Fairmount is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Jefferson County, Colorado. It covers 6.1 square miles of land, 1,533 residents per square mile in 2020.
Fairmount is in the Denver-Aurora-Centennial, CO metropolitan statistical area, which takes in 10 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Fairmount, and is it growing?
The 2020-2024 American Community Survey puts Fairmount's population at 9,902 (±963). The 2020 Census counted 9,324 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; Fairmount is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Fairmount | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 9,902 ±963 | 579,377 | +1,296 |
| Households | 3,680 ±329 | 241,735 | +430 |
| Average household size | 2.67 ±0.14 | 2.36 | no clear change |
| Housing units | 3,710 ±326 | 253,574 | no clear change |
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 Fairmount?
The median resident of Fairmount is 43.5 years old; 23.4% are under 18 and 17.5% are 65 or older. The largest group is non-Hispanic white residents at 88.9%, then Hispanic or Latino residents (of any race) at 5.4%. 3.8% of residents were born outside the United States.
| Measure | Fairmount | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.5 ±3.7 | 40.5 | no clear change |
| Under 18 years | 23.4% ±2.4 pts | 18.5% | – |
| 65 years and over | 17.5% ±2.6 pts | 17.9% | – |
| Male | 45.8% ±2.2 pts | 50.3% | – |
| Hispanic or Latino (any race) | 5.4% ±1.9 pts | 16.1% | no clear change |
| White alone, not Hispanic | 88.9% ±3.0 pts | 75.2% | no clear change |
| Black or African American alone, not Hispanic | 0.5% ±0.4 pts | 1.1% | – |
| Asian alone, not Hispanic | 1.0% ±0.7 pts | 2.9% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.4 pts | 0.1% | – |
| Two or more races, not Hispanic | 3.1% ±1.4 pts | 4.0% | – |
| Some other race alone, not Hispanic | 1.1% ±1.3 pts | 0.4% | – |
| Born outside the United States | 3.8% ±1.5 pts | 6.3% | no clear change |
| Speak a language other than English at home (age 5+) | 5.8% ±2.2 pts | 10.0% | – |
| Civilian veterans (age 18+) | 4.5% ±1.1 pts | 6.5% | – |
| With a disability | 8.1% ±2.3 pts | 11.0% | – |
| No health insurance coverage | 0.6% ±0.5 pts | 5.3% | – |
| High school graduate or higher (age 25+) | 97.1% ±1.3 pts | 95.8% | – |
| Bachelor's degree or higher (age 25+) | 65.2% ±5.4 pts | 52.0% | +16.7 pts |
| Graduate or professional degree (age 25+) | 28.8% ±4.8 pts | 19.3% | – |
| Lived in the same house a year earlier | 91.7% ±2.4 pts | 85.8% | – |
| Moved from another state in the past year | 1.5% ±1.1 pts | 2.9% | – |
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 Fairmount earn?
Half of Fairmount's 3,680 households earn less than $163,600 a year (±$17,599), against $110,656 in Jefferson County and $95,470 in Colorado. In 2015-2019 the median was $136,789 in 2024 dollars, so it rose by $26,811 after inflation. 2.9% of residents live below the poverty line.
| Measure | Fairmount | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $163,600 ±$17,599 | $110,656 | +$26,811 |
| Mean household income | $204,567 ±$16,690 | $142,995 | – |
| Per capita income | $77,506 ±$7,510 | $60,827 | +$13,962 |
| People below the poverty line | 2.9% ±1.5 pts | 6.7% | no clear change |
| Children under 18 below the poverty line | 0.5% ±0.8 pts | 7.0% | – |
| Households receiving SNAP | 1.2% ±0.7 pts | 5.5% | – |
| Households with a computer | 98.2% ±1.6 pts | 97.6% | – |
| Households with a broadband subscription | 97.2% ±1.7 pts | 95.1% | – |
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 Fairmount?
Owners occupy 91.7% of Fairmount's occupied homes and renters 8.3%. The median owner-occupied home is valued at $827,600 by its owner (±$37,490). The median renter pays $2,679 a month including utilities.
| Measure | Fairmount | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $827,600 ±$37,490 | $637,600 | +$191,700 |
| Median gross rent | $2,679 ±$797 | $1,861 | +$867 |
| Renters paying 35% or more of income on rent | 21.0% ±16.9 pts | 42.5% | – |
| Median monthly owner costs, with a mortgage | $2,801 ±$129 | $2,498 | – |
| Owner-occupied homes | 91.7% ±3.1 pts | 70.7% | no clear change |
| Renter-occupied homes | 8.3% ±3.1 pts | 29.3% | – |
| Housing units | 3,710 ±326 | 253,574 | no clear change |
| Homeowner vacancy rate | 0.0% ±1.3 pts | 0.6% | – |
| Rental vacancy rate | 0.0% ±12.9 pts | 4.9% | – |
| Single-family detached homes | 98.0% ±1.2 pts | 63.8% | – |
| Mobile homes | 0.5% ±0.6 pts | 0.8% | – |
| Built 2020 or later | 0.6% ±0.9 pts | 1.7% | – |
| Built 2010 to 2019 | 19.0% ±5.0 pts | 8.7% | – |
| Built 1939 or earlier | 1.6% ±1.4 pts | 2.8% | – |
| Households with no vehicle | 1.2% ±1.0 pts | 4.0% | – |
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 do people in Fairmount work and get to work?
62.5% of Fairmount's workers drive alone and 28.6% work from home. The average trip to work takes 23.3 minutes. The unemployment rate in 2020-2024 averaged 2.8%.
| Measure | Fairmount | Jefferson County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 66.8% ±4.1 pts | 69.3% | – |
| Unemployment rate | 2.8% ±1.2 pts | 3.9% | no clear change |
| Drove alone to work | 62.5% ±5.3 pts | 64.4% | – |
| Carpooled | 4.8% ±1.8 pts | 5.7% | – |
| Public transportation | 1.1% ±1.5 pts | 1.3% | – |
| Walked | 1.6% ±1.7 pts | 1.4% | – |
| Worked from home | 28.6% ±4.8 pts | 25.4% | +22.9 pts |
| Mean travel time to work | 23.3 min ±2.0 | 26.0 min | −5.7 min |
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 Fairmount?
2 census tracts lie mostly in Fairmount, and 4 more reach into it (2020 census blocks). Their median household incomes run from $161,000 (Tract 98.52) to $167,790 (Tract 98.53).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 98.52Jefferson County | 4,893 | $161,000 |
| Tract 98.53Jefferson County | 2,695 | $167,790 |
| Tract 98.42Jefferson County | 3,201 | $156,250 |
| Tract 98.51Jefferson County | 3,854 | $118,355 |
| Tract 98.54Jefferson County | 5,252 | $168,636 |
| Tract 103.08Jefferson County | 7,081 | $122,873 |
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 Fairmount) · Census block assignment files
How does Fairmount compare with other places in Colorado?
Fairmount ranks 17th of 218 places in Colorado with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 71st | 220 |
| Residents per square mile | 96th | 221 |
| Median household income | 17th | 218 |
| Per capita income | 30th | 220 |
| Median home value | 35th | 217 |
| Median gross rent | 9th | 200 |
| Poverty rate | 148th | 151 |
| Bachelor's degree or higher | 32nd | 216 |
| Median age | 56th | 220 |
| Owner-occupied share | 21st | 218 |
| Work from home | 44th | 176 |
| Travel time to work | 129th | 221 |
Fairmount's figures with every place in Colorado (CSV)
Every place in Colorado, sortable · Compare Fairmount 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 Fairmount?
17 of the 57 figures for Fairmount 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 Fairmount 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' school search.