Los Alamos County, New Mexico ZIP codes
2 ZIP codes are in Los Alamos County, plus 1 that cross in from neighboring counties. It's part of the Los Alamos, NM micro area.
- ZIP codes
- 2
- Population in these ZIPs
- 5,837
- Avg. median income
- $156,400population-weighted
- Cities & towns
- 2
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Los Alamos County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 87545 PO Box | Los Alamos | — | — | — |
| 87547 | White Rock | 5,837 | $156,444 | $591,500 |
ZIP codes partly in Los Alamos County
These ZIP codes are mostly in a neighboring county but cover part of Los Alamos County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 87544 | Los Alamos | Sandoval County | 13,598 | $138,583 | $574,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Los Alamos County
Nearby counties
Frequently asked questions
How many ZIP codes are in Los Alamos County, New Mexico?
2 ZIP codes are mainly in Los Alamos County, and 1 more ZIP codes from neighboring areas reach partly into it.
What cities are in Los Alamos County?
ZIP codes in Los Alamos County use the city names Los Alamos and White Rock.
What metro area is Los Alamos County in?
Los Alamos County is part of the Los Alamos, NM micropolitan statistical area.