ZIP code · Castroville · California · United States

ZIP code 95012 — Castroville

ZIP code 95012 serves Castroville, California.

Postal code
95012
Single source Value from one source, not cross-checked.
City
Castroville
County
Monterey FIPS 06053
State
California
Country
United States
Coordinates
36.7658, -121.7580 — precision precise (locality)
View on OpenStreetMap
Population
11,147 (ZCTA, ACS 5-year)
Population density
863 / sq mi
Land area
12.9 sq mi (33.5 km²) (ZCTA, ACS 5-year)
Median household income
$79,903
Per-capita income
$20,950
Median age
27.9
Households
2,480
Housing units
2,652
Median home value
$629,600
Median gross rent
$1,499 / month
Congressional districts
CA-19 (also CA-18) (119th Congress)
USDA hardiness zone
9b (25 to 30 °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
831
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 Sep (avg high 75°F), coldest Dec (avg low 40°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F636466676870717375746862
Avg low °F414244454951545453494340
Precip in3.33.02.51.10.50.10.00.00.10.61.62.8

NOAA 1991–2020 climate normals from the nearest station: SALINAS #2 (8.9 mi) · NOAA NCEI

Places in ZIP 95012

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