Census-designated place · New Mexico
Los Alamos, New Mexico
Los Alamos, census-designated place, in Los Alamos County, New Mexico. Los Alamos had 13,317 people in the ACS 2020-2024 5-year estimates (±655). GEOID 3542320.
Residents, 2020-2024
13,317
±655 (90% margin)
2020 Census count: 13,179
Median household income
$141,018
±$16,536 (90% margin)
New Mexico: $64,059
Median home value
$501,800
±$36,774 (90% margin)
New Mexico: $248,100
Median gross rent
$1,359
±$133 (90% margin)
New Mexico: $1,067
Where is Los Alamos and what county is it in?
Los Alamos is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Los Alamos County, New Mexico. It covers 11.1 square miles of land, 1,186 residents per square mile in 2020.
Los Alamos is in the Los Alamos, NM micropolitan statistical area (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 Los Alamos, and is it growing?
The 2020-2024 American Community Survey puts Los Alamos's population at 13,317 (±655). The 2020 Census counted 13,179 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; Los Alamos is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Los Alamos | Los Alamos County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 13,317 ±655 | 19,435 | no clear change |
| Households | 5,975 ±278 | 8,247 | +417 |
| Average household size | 2.21 ±0.08 | 2.35 | no clear change |
| Housing units | 6,190 ±242 | 8,713 | +322 |
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 Los Alamos?
The median resident of Los Alamos is 38.8 years old; 20.2% are under 18 and 17.4% are 65 or older. The largest group is non-Hispanic white residents at 69.5%, then Hispanic or Latino residents (of any race) at 17.9%. 11.5% of residents were born outside the United States.
| Measure | Los Alamos | Los Alamos County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.8 ±1.1 | 39.3 | no clear change |
| Under 18 years | 20.2% ±1.5 pts | 22.0% | – |
| 65 years and over | 17.4% ±1.7 pts | 18.4% | – |
| Male | 53.6% ±1.6 pts | 51.9% | – |
| Hispanic or Latino (any race) | 17.9% ±2.0 pts | 18.0% | no clear change |
| White alone, not Hispanic | 69.5% ±2.3 pts | 69.8% | no clear change |
| Black or African American alone, not Hispanic | 0.8% ±1.0 pts | 0.9% | – |
| Asian alone, not Hispanic | 6.3% ±1.3 pts | 4.9% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.5% ±0.4 pts | 0.6% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.1% ±0.2 pts | 0.1% | – |
| Two or more races, not Hispanic | 4.4% ±1.5 pts | 5.3% | – |
| Some other race alone, not Hispanic | 0.5% ±0.5 pts | 0.4% | – |
| Born outside the United States | 11.5% ±2.1 pts | 9.4% | no clear change |
| Speak a language other than English at home (age 5+) | 18.3% ±3.3 pts | 14.6% | – |
| Civilian veterans (age 18+) | 6.0% ±1.7 pts | 7.3% | – |
| With a disability | 9.8% ±2.1 pts | 10.6% | – |
| No health insurance coverage | 3.4% ±1.5 pts | 2.5% | no clear change |
| High school graduate or higher (age 25+) | 97.6% ±1.1 pts | 98.3% | – |
| Bachelor's degree or higher (age 25+) | 69.8% ±3.9 pts | 69.7% | no clear change |
| Graduate or professional degree (age 25+) | 46.5% ±4.0 pts | 44.2% | – |
| Lived in the same house a year earlier | 85.5% ±3.1 pts | 86.1% | – |
| Moved from another state in the past year | 7.4% ±2.3 pts | 6.4% | – |
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 Los Alamos earn?
Half of Los Alamos's 5,975 households earn less than $141,018 a year (±$16,536), against $147,139 in Los Alamos County and $64,059 in New Mexico. In 2015-2019 it was $142,903 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.1% of residents live below the poverty line.
| Measure | Los Alamos | Los Alamos County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $141,018 ±$16,536 | $147,139 | no clear change |
| Mean household income | $164,414 ±$14,035 | $170,885 | – |
| Per capita income | $76,146 ±$5,978 | $74,704 | no clear change |
| People below the poverty line | 4.1% ±1.8 pts | 3.5% | no clear change |
| Children under 18 below the poverty line | 6.0% ±4.4 pts | 5.2% | – |
| Households receiving SNAP | 4.8% ±2.3 pts | 4.2% | – |
| Households with a computer | 98.4% ±1.3 pts | 98.1% | – |
| Households with a broadband subscription | 94.5% ±2.1 pts | 93.4% | – |
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 Los Alamos?
Owners occupy 66.5% of Los Alamos's occupied homes and renters 33.5%. The median owner-occupied home is valued at $501,800 by its owner (±$36,774). The median renter pays $1,359 a month including utilities, and 18.8% of renters pay 35% or more of their income on rent.
| Measure | Los Alamos | Los Alamos County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $501,800 ±$36,774 | $495,800 | +$122,623 |
| Median gross rent | $1,359 ±$133 | $1,375 | no clear change |
| Renters paying 35% or more of income on rent | 18.8% ±7.3 pts | 18.2% | no clear change |
| Median monthly owner costs, with a mortgage | $2,274 ±$231 | $2,315 | – |
| Owner-occupied homes | 66.5% ±4.6 pts | 74.8% | no clear change |
| Renter-occupied homes | 33.5% ±4.6 pts | 25.2% | – |
| Housing units | 6,190 ±242 | 8,713 | +322 |
| Homeowner vacancy rate | 0.1% ±0.3 pts | 0.8% | – |
| Rental vacancy rate | 1.1% ±1.9 pts | 1.1% | – |
| Single-family detached homes | 51.3% ±3.8 pts | 62.3% | – |
| Mobile homes | 4.2% ±1.9 pts | 5.1% | – |
| Built 2020 or later | 1.8% ±1.0 pts | 3.8% | – |
| Built 2010 to 2019 | 5.4% ±2.2 pts | 4.3% | – |
| Built 1939 or earlier | 0.0% ±0.7 pts | 0.1% | – |
| Households with no vehicle | 2.8% ±1.7 pts | 2.2% | – |
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 do people in Los Alamos work and get to work?
70.5% of Los Alamos's workers drive alone and 16.8% work from home. The average trip to work takes 12.4 minutes.
| Measure | Los Alamos | Los Alamos County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 68.6% ±2.8 pts | 67.8% | – |
| Unemployment rate | 0.8% ±0.6 pts | 0.6% | – |
| Drove alone to work | 70.5% ±4.8 pts | 71.8% | – |
| Carpooled | 5.6% ±2.4 pts | 7.2% | – |
| Public transportation | 1.4% ±1.1 pts | 1.2% | – |
| Walked | 3.2% ±1.7 pts | 2.2% | – |
| Worked from home | 16.8% ±3.8 pts | 15.6% | +12.1 pts |
| Mean travel time to work | 12.4 min ±0.9 | 14.7 min | −2.7 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 Los Alamos?
3 census tracts lie mostly in Los Alamos (2020 census blocks). Their median household incomes run from $104,028 (Tract 4) to $161,867 (Tract 2).
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 Los Alamos) · Census block assignment files
How does Los Alamos compare with other places in New Mexico?
Los Alamos ranks 6th of 143 places in New Mexico with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 17th | 153 |
| Residents per square mile | 27th | 155 |
| Median household income | 6th | 143 |
| Per capita income | 6th | 154 |
| Median home value | 13th | 138 |
| Median gross rent | 13th | 114 |
| Poverty rate | 109th | 109 |
| Bachelor's degree or higher | 6th | 128 |
| Median age | 83rd | 154 |
| Owner-occupied share | 116th | 150 |
| Work from home | 29th | 78 |
| Travel time to work | 139th | 150 |
Los Alamos's figures with every place in New Mexico (CSV)
Every place in New Mexico, sortable · Compare Los Alamos 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 Los Alamos?
10 of the 57 figures for Los Alamos 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 Los Alamos 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.