Data / Population density / Los Alamos County

Population density in Los Alamos County

Population density in Los Alamos County was 68.7 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is down 0.1% from 2024. That is the 2nd highest of 33 counties in 2025.

2025, inhabitants per km²68.7
Change on 2024-0.1%
Rank2nd of 33Counties in New Mexico ranked
Series high68.72024
Series low67.92022

Population density in Los Alamos County, 2020 to 2025

CSVChart (SVG)

67.86868.268.468.668.82020202120222023202420252020: 68.7 inhabitants per km²2021: 68.6 inhabitants per km²2022: 67.9 inhabitants per km²2023: 68.3 inhabitants per km²2024: 68.7 inhabitants per km²2025: 68.7 inhabitants per km²
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09, published 2026-03-26.
All 6 values
Periodinhabitants per km²
202568.7
202468.7
202368.3
202267.9
202168.6
202068.7

Compared with New Mexico and United States

Place2025
Los Alamos County68.7
New Mexico6.8
United States37.3

Rankings

Definition

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Questions

What is the population density in Los Alamos County?

Population density in Los Alamos County was 68.7 inhabitants per km² in 2025, according to the U.S. Census Bureau. That is down 0.1% from 2024. That is the 2nd highest of 33 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved by Invokely on 2026-10-09.

What was the highest population density in Los Alamos County?

68.7 inhabitants per km² in 2024, the highest value since 2020 in this series.

More statistics for Los Alamos County

All statistics for Los Alamos County