ZIP code · Los Osos · California · United States

ZIP code 93402 — Los Osos

ZIP code 93402 serves Los Osos, California.

Postal code
93402
Single source Value from one source, not cross-checked.
City
Los Osos
County
San Luis Obispo FIPS 06079
State
California
Country
United States
Coordinates
35.3172, -120.8333 — precision precise (locality)
View on OpenStreetMap
Population
15,085 (ZCTA, ACS 5-year)
Population density
544 / sq mi
Land area
27.7 sq mi (71.9 km²) (ZCTA, ACS 5-year)
Median household income
$103,839
Per-capita income
$51,749
Median age
47.4
Households
6,232
Housing units
6,586
Median home value
$729,200
Median gross rent
$1,909 / month
Congressional district
CA-24 (119th Congress)
USDA hardiness zone
10a (30 to 35 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Los_Angeles (UTC−8 / UTC−7 DST)
Area code
805 (from the nearest rate centre)
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Oct (avg high 73°F), coldest Dec (avg low 46°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F656566676766677072736965
Avg low °F464849495254575756545046
Precip in3.63.63.21.00.40.20.10.00.10.71.32.8

NOAA 1991–2020 climate normals from the nearest station: MORRO BAY FIRE DEPT (3.5 mi) · NOAA NCEI

Places in ZIP 93402

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page