ZIP Code 93442

93442 is one of California's ZIP codes, delivering to addresses in Morro Bay, San Luis Obispo County.

City: Morro Bay
County: San Luis Obispo County
State: California
Prefix: 934xx

Where this code sits

93442 is part of the 934xx range, the group of codes handled by one mail processing centre. Morro Bay is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Morro Bay page.

Morro Bay California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 93442 delivers to without sharing its boundary.

ZIP codes nearest 93442

The ZIP codes whose reference points sit closest to 93442.
ZIP code	Distance	Delivers to
ZIP code 93443	1.0 mi	Morro Bay, CA
ZIP code 93402	4.4 mi	Los Osos, CA
ZIP code 93412	4.8 mi	Los Osos, CA
ZIP code 93430	5.2 mi	Cayucos, CA
ZIP code 93423	5.4 mi	Atascadero, CA
ZIP code 93435	11 mi	Harmony, CA
ZIP code 93405	11 mi	San Luis Obispo, CA
ZIP code 93422	12 mi	Atascadero, 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 93442, plotted from its record coordinates.

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

Scope ZIP code 93442. 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.