Los Alamos, CA ZIP code
The ZIP code for Los Alamos, California is 93440. It is in Santa Barbara County.
- Population in these ZIPs
- 1,185
- Avg. median income
- $79,200population-weighted
- Typical home value
- $899,900population-weighted
- Metro area
- Santa Maria-Santa Barbara, CA
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Los Alamos, CA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 93440 | 1,185 | $79,167 | $899,900 |
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 near Los Alamos
- Buellton 9 mi
- Los Olivos 10 mi
- Solvang 12 mi
- Lompoc 13 mi
- Santa Maria 14 mi
- Casmalia 17 mi
- Nipomo 23 mi
- Guadalupe 24 mi
- New Cuyama 29 mi
- Oceano 29 mi
- Santa Ynez 30 mi
- Arroyo Grande 30 mi
Frequently asked questions
What is the ZIP code for Los Alamos, CA?
The ZIP code for Los Alamos, CA is 93440.
What county is Los Alamos, California in?
Los Alamos ZIP codes are in Santa Barbara County.