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Concord California ZIP Codes

Concord holds 8 ZIP codes, all inside one county and one postal prefix.

Every ZIP code in Concord

The complete list of Concord, California ZIP codes with the county each falls in.
ZIP codeCounty
94518Contra Costa County
94519Contra Costa County
94520Contra Costa County
94521Contra Costa County
94522Contra Costa County
94524Contra Costa County
94527Contra Costa County
94529Contra Costa County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Concord codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Concord. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Concord ZIP code begins 945. Those first three digits identify the sectional center facility that processes mail for this part of California. Statewide that range covers 93 ZIP codes, so Concord accounts for 9% of it.

Every California ZIP prefix and the region it covers →

Area codes covering Concord

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Concord occupies.

Concord California area codes in full →

Where Concord's ZIP codes sit

Each point is one Concord ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Concord

The closest places to Concord with their own ZIP code list, nearest first.
CityDistanceZIP codes
Pleasant Hill California ZIP codes4.2 mi1 ZIP code
Clayton California ZIP codes4.5 mi1 ZIP code
Walnut Creek California ZIP codes5.3 mi4 ZIP codes
Martinez California ZIP codes6.4 mi1 ZIP code
Pittsburg California ZIP codes6.5 mi1 ZIP code
Alamo California ZIP codes8.1 mi1 ZIP code
Lafayette California ZIP codes8.5 mi1 ZIP code
Benicia California ZIP codes11 mi1 ZIP code

Straight-line distance between place reference points, not driving distance.