ZIP code · Concord · California · United States

ZIP code 94520 — Concord

ZIP code 94520 serves Concord, California.

Postal code
94520
Single source Value from one source, not cross-checked.
City
Concord
County
Contra Costa FIPS 06013
State
California
Country
United States
Coordinates
37.9823, -122.0362 — precision precise (locality)
View on OpenStreetMap
Population
36,767 (ZCTA, ACS 5-year)
Population density
3,724 / sq mi
Land area
9.9 sq mi (25.6 km²) (ZCTA, ACS 5-year)
Median household income
$79,790
Per-capita income
$37,146
Median age
34.6
Households
13,287
Housing units
13,661
Median home value
$572,400
Median gross rent
$2,118 / month
Congressional districts
CA-10 (also CA-8) (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
925
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 Jul (avg high 88°F), coldest Dec (avg low 41°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F586267717884888885786658
Avg low °F414447495357595958534541
Precip in3.23.22.31.10.50.20.00.00.10.71.63.2

NOAA 1991–2020 climate normals from the nearest station: CONCORD BUCHANAN FLD (1.2 mi) · NOAA NCEI

Places in ZIP 94520

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