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COUNTY

Los Alamos County

New Mexico · 19,407 residents (2025 est.) · 109.123 sq mi
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Notable rankings
#3Most educatedof 3,14469.7%#4Lowest poverty rateof 3,1443.5%#8Highest median household incomeof 3,143$147,139#60Lowest unemploymentof 3,1440.6%
The short version

Los Alamos County is significantly wealthier than the US average, with a median household income of $147,139. Population has held roughly steady since 2000. 70% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value has more than doubled since 2000, reaching $495,800. Poverty is rare here, at 3.5% of residents. It ranks in the top 1% of US counties for household income.

At a glance
Wealthier
above the US median
US median: $82,259
Mid-age
median age 39.3
US median: 38.9
More educated
70% hold a bachelor's degree
US average: 36%
Less affordable
home values up 28%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
19,435
+6%since 2000
from 18,343 in 2000
1990 – 2025
Population density
178 / sq mi
+5%since 2009
from 169 / sq mi in 2009
US average: 281
Median age
39.3
−4%since 2000
from 40.8 in 2000
US average: 38.9

PEP 2025 EST:19,407 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
18K18K19K19K20K1990201020202024Los Alamos County
202419K
1990201020202024
Age distribution, 2024
Under 55%(963)
US avg: 5.6%
5 to 96.5%(1,267)
US avg: 6%
10 to 146.2%(1,202)
US avg: 6.4%
15 to 195.7%(1,100)
US avg: 6.6%
20 to 244.4%(863)
US avg: 6.5%
25 to 3415.2%(2,945)
US avg: 13.7%
35 to 4414.1%(2,746)
US avg: 13.2%
45 to 5411.1%(2,151)
US avg: 12.2%
55 to 6413.5%(2,625)
US avg: 12.7%
65 to 7410.1%(1,959)
US avg: 10.2%
75 to 845.6%(1,082)
US avg: 5.1%
85 and over2.7%(532)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$147,139
+2%inflation adjusted, since 2000
from $78,993 in 2000
US average: $82,259
1990 – 2024
Per capita income
$74,704
+116%since 2000
from $34,646 in 2000
US average: $44,673
Households earning $100K+
77.9%
+14.3 ptssince 2009
from 63.6% in 2009
US average: 53.3%
Poverty rate
3.5%
+0.6 ptssince 2000
from 2.9% in 2000
US average: 12.5%
Income inequality (Gini)
0.382
+9%since 2010
from 0.351 in 2010
US average: 0.476
Workforce by industry, 2024
Information4.5%
US avg: 10.8%
Wholesale trade2.5%
US avg: 6.9%
Arts, entertainment, food1.5%
US avg: 1.9%
Retail trade1.5%
US avg: 9.9%
Finance & insurance1.2%
US avg: 5.9%
Professional, scientific, technical1.2%
US avg: 5.1%
Other services1%
US avg: 6.7%
Public administration0.3%
US avg: 4.8%
Transportation & warehousing0.2%
US avg: 2.2%
Education & health services0.1%
US avg: 0.9%
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$495,800
+28%inflation adjusted, since 2000
from $213,000 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,375
+13%inflation adjusted, since 2000
from $666 in 2000
US average: $1,442
Owner-occupied
74.8%
−3.8 ptssince 2000
from 78.6% in 2000
25.2% rent
Vacancy rate
5.3%
−3.6 ptssince 2009
from 8.9% in 2009
US average: 10.0%
Owner cost-burdened
7.8%
−4.6 ptssince 2009
from 12.4% in 2009
US average: 22.9%
Renter cost-burdened
28.3%
−1.4 ptssince 2009
from 29.7% in 2009
US average: 47.4%
Afford Score
3.4
+18%since 2009
from 2.9 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
39
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Los Alamos County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic82.1%(15,051)
Black0.3%(63)
Hispanic / Latino11.7%(2,155)
Asian3.8%(690)
Other0%
2024
White, non-Hispanic69.8%(13,569)
Black0.9%(168)
Hispanic / Latino18%(3,501)
Asian4.9%(962)
Other6.4%(1,235)
Diversity Score
59
+20%since 2009
from 49 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
15
+27%since 2020
from 12 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican8%(1,563)
Spaniard2.5%(483)
Dominican0.7%(135)
Puerto Rican0.6%(114)
Nicaraguan0.5%(92)
Peruvian0.3%(52)
Cuban0.2%(42)
Chilean0.2%(38)
Colombian0.2%(33)
Bolivian0.1%(24)
+ 3 more hispanic origin groups with data
Ecuadorian0.1%(14)
Guatemalan0.1%(11)
Panamanian0.1%(11)
Asian origin
Chinese2.1%(417)
Asian Indian0.6%(119)
Korean0.5%(94)
Vietnamese0.3%(68)
Filipino0.3%(58)
Bangladeshi0.2%(44)
Nepalese0.2%(38)
Japanese0.2%(37)
Taiwanese0.2%(36)
Indonesian0.1%(26)
Pacific Islander origin
Chamorro0.1%(27)
Ancestry
English22.5%(4,373)
German18.4%(3,568)
Irish12.1%(2,345)
American4.2%(824)
Italian4.1%(796)
Scottish3.3%(641)
French2.8%(545)
Polish2.6%(506)
Norwegian1.9%(366)
Swedish1.7%(322)
Russian1.3%(262)
Dutch1.3%(248)
+ 30 more ancestry groups with data
Scotch-Irish1.1%(221)
Danish1%(193)
Portuguese1%(193)
Welsh1%(191)
British0.8%(150)
West Indian0.8%(148)
Swiss0.8%(147)
Hungarian0.7%(131)
Belgian0.6%(125)
Greek0.6%(110)
Ukrainian0.5%(101)
Arab0.5%(100)
Lithuanian0.4%(80)
Jamaican0.4%(76)
Czech0.4%(75)
Lebanese0.3%(64)
Slovak0.3%(58)
Brazilian0.3%(56)
Romanian0.2%(44)
Austrian0.2%(40)
Serbian0.1%(25)
Iraqi0.1%(19)
Canadian0.1%(18)
Croatian0.1%(15)
Finnish0.1%(15)
Nigerian0.1%(15)
Turkish0%(9)
Israeli0%(7)
RANKED:Largest English population · Largest German population · Largest Irish population · Largest Mexican population · Largest American population
Section 05

Education

Bachelor's degree or higher
69.7%
+9.3 ptssince 2000
from 60.5% in 2000
US average: 35.6%
High school or higher
98.3%
+1.9 ptssince 2000
from 96.3% in 2000
US average: 89.6%
Graduate degree
44.2%
+8.1 ptssince 2000
from 36.0% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
14.7 min
+55%since 2000
from 9.5 min in 2000
US average: 26.5
Drive alone to work
71.8%
−3.7 ptssince 2009
from 75.5% in 2009
US average: 68.9%
Carpooled to work
7.2%
−5.6 ptssince 2009
from 12.8% in 2009
US average: 8.5%
Public transit
1.2%
+0.3 ptssince 2009
from 0.9% in 2009
US average: 3.2%
Worked from home
15.6%
+11.4 ptssince 2009
from 4.2% in 2009
US average: 15.0%
Walked to work
2.2%
−2.5 ptssince 2009
from 4.8% in 2009
US average: 2.4%
Biked to work
1.0%
Unchangedsince 2009
from 1.0% in 2009
US average: 0.4%
No vehicle available
2.2%
−0.3 ptssince 2009
from 2.4% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
0.6%
−3.4 ptssince 2011
from 4.1% in 2011
US average: 5.2%
Labor force participation
67.8%
+0.6 ptssince 2011
from 67.2% in 2011
US average: 63.5%
Self-employed
18.0%
+3.9 ptssince 2009
from 14.1% in 2009
US average: 13.1%
Management & professional
74.6%
−7.1 ptssince 2009
from 81.7% in 2009
US average: 42.5%
Section 08

People & community

Male
51.9%
+1.0 ptssince 2009
from 50.9% in 2009
Female
48.1%
−1.0 ptssince 2009
from 49.1% in 2009
Foreign born
9.4%
+0.5 ptssince 2009
from 8.9% in 2009
US average: 14.1%
Veterans
7.3%
−43.4 ptssince 2009
from 50.7% in 2009
US average: 6.2%
With a disability
10.6%
+2.5 ptssince 2012
from 8.1% in 2012
US average: 13.3%
Uninsured
2.5%
−92.4 ptssince 2013
from 94.9% in 2013
US average: 8.4%
Broadband at home
93.4%
+7.1 ptssince 2017
from 86.3% in 2017
US average: 91.0%
English only at home
85.4%
+1.7 ptssince 2016
from 83.7% in 2016
US average: 77.7%
Spanish at home
5.9%
−2.2 ptssince 2016
from 8.1% in 2016
US average: 13.6%
Marital status
Men 15+
Never married30%(2,505)
Married57.6%(4,808)
Widowed2.7%(225)
Divorced9.7%(807)
Women 15+
Never married24.4%(1,871)
Married60.7%(4,647)
Widowed4.4%(338)
Divorced10.5%(802)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
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Head to head

Compare Los Alamos County to nearby counties

LOS ALAMOS COUNTY VS
Santa Fe County
Income$79,071−46%
Home value$446,300−10%
Population156,907+709%
SEE FULL COMPARISON →
LOS ALAMOS COUNTY VS
Sandoval County
Income$86,636−41%
Home value$313,800−37%
Population159,565+722%
SEE FULL COMPARISON →
LOS ALAMOS COUNTY VS
Rio Arriba County
Income$57,155−61%
Home value$243,700−51%
Population39,832+105%
SEE FULL COMPARISON →
LOS ALAMOS COUNTY VS
Bernalillo County
Income$69,473−53%
Home value$292,900−41%
Population667,601+3340%
SEE FULL COMPARISON →
Frequently asked

How many people live in Los Alamos County, New Mexico?

Los Alamos County, New Mexico has about 19,435 residents according to the 2024 American Community Survey.

What is the median household income in Los Alamos County, New Mexico?

The typical household in Los Alamos County, New Mexico earns about $147,139 a year. Half of households make more than that, and half make less.

Is Los Alamos County, New Mexico expensive?

In Los Alamos County, New Mexico, the median home is worth about $495,800, and the typical rent is about $1,375 a month.

How educated are people in Los Alamos County, New Mexico?

About 69.7% of adults age 25 and over in Los Alamos County, New Mexico hold a bachelor's degree or higher.

What is the poverty rate in Los Alamos County, New Mexico?

About 3.5% of people in Los Alamos County, New Mexico live below the federal poverty line.

Has Los Alamos County, New Mexico grown since 1990?

Yes, Los Alamos County, New Mexico has grown since 1990. The population has added about 1,320 residents, a change of about 7 percent over that period.

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Explore from here

4 census tracts
Census Tract 5Census Tract 2Census Tract 4Census Tract 1
1 ZIP code
ZIP 87547
Up the hierarchy
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Rankings
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →