Seaside California ZIP Codes
Seaside holds a single ZIP code.
Every ZIP code in Seaside
| ZIP code | County |
|---|---|
| 93955 | Monterey 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Seaside codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Seaside. 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 Seaside ZIP code begins 939. Those first three digits identify the sectional center facility that processes mail for this part of California. Statewide that range covers 30 ZIP codes, so Seaside accounts for 3% of it.
Every California ZIP prefix and the region it covers →
Area codes covering Seaside
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 Seaside occupies.
Seaside California area codes in full →
Where Seaside's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Seaside
| City | Distance | ZIP codes |
|---|---|---|
| Monterey California ZIP codes | 4.0 mi | 4 ZIP codes |
| Marina California ZIP codes | 4.1 mi | 1 ZIP code |
| Pacific Grove California ZIP codes | 6.0 mi | 1 ZIP code |
| Salinas California ZIP codes | 11 mi | 8 ZIP codes |
| Watsonville California ZIP codes | 21 mi | 2 ZIP codes |
| San Juan Bautista California ZIP codes | 22 mi | 1 ZIP code |
| Gonzales California ZIP codes | 22 mi | 1 ZIP code |
| Capitola California ZIP codes | 25 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.