ZIP Code 94556

94556 is one of California's ZIP codes, delivering to addresses in Moraga, Contra Costa County.

City: Moraga
County: Contra Costa County
State: California
Prefix: 945xx

Where this code sits

94556 is part of the 945xx range, the group of codes handled by one mail processing centre. Moraga is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Moraga page.

Moraga California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 94556 delivers to without sharing its boundary.

925 Area code 925

ZIP codes nearest 94556

The ZIP codes whose reference points sit closest to 94556.
ZIP code	Distance	Delivers to
ZIP code 94516	2.3 mi	Canyon, CA
ZIP code 94563	3.6 mi	Orinda, CA
ZIP code 94595	3.7 mi	Walnut Creek, CA
ZIP code 94549	3.7 mi	Lafayette, CA
ZIP code 94619	5.2 mi	Oakland, CA
ZIP code 94611	5.4 mi	Oakland, CA
ZIP code 94613	5.5 mi	Oakland, CA
ZIP code 94602	5.5 mi	Oakland, CA

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 94556, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 94556. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.