Total Population in Los Alamos County, NM
ACS 2024 5-Year Estimates
19,435
Rank #1,913/3,222 · #20 in NM
41th
Los Alamos 19,435
NM 2,120,246 -99.1%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Los Alamos County's total population of 19,435 compares to all 3,222 U.S. counties. Values range from 33 to 9,808,667.
Distribution of Total Population Across All Counties
Ranking Context
Counties ranked closest to Los Alamos County for total population.
Nearby Rankings
Full ranking →| #1,910 | Holmes County, FL | 19,513 |
| #1,911 | Hempstead County, AR | 19,508 |
| #1,912 | Langlade County, WI | 19,490 |
| #1,913 | Los Alamos County, NM | 19,435 |
| #1,914 | Plumas County, CA | 19,423 |
| #1,915 | Buchanan County, VA | 19,415 |
| #1,916 | Franklin Parish, LA | 19,408 |
About Total Population
Los Alamos County, New Mexico has a total population of 19,435, ranking #1,913 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within New Mexico, it ranks #20 of 33. This places it in the 41th percentile nationally.
Total population count from the American Community Survey. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.