Half Moon Bay California ZIP Codes
Half Moon Bay holds a single ZIP code.
Every ZIP code in Half Moon Bay
| ZIP code | County |
|---|---|
| 94019 | San Mateo 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Half Moon Bay codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Half Moon Bay. 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 Half Moon Bay ZIP code begins 940. Those first three digits identify the sectional center facility that processes mail for this part of California. Statewide that range covers 45 ZIP codes, so Half Moon Bay accounts for 2% of it.
Every California ZIP prefix and the region it covers →
Area codes covering Half Moon Bay
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 Half Moon Bay occupies.
Half Moon Bay California area codes in full →
Where Half Moon Bay's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Half Moon Bay
| City | Distance | ZIP codes |
|---|---|---|
| Belmont California ZIP codes | 8.6 mi | 1 ZIP code |
| Millbrae California ZIP codes | 9.3 mi | 1 ZIP code |
| Burlingame California ZIP codes | 9.5 mi | 2 ZIP codes |
| San Mateo California ZIP codes | 9.6 mi | 5 ZIP codes |
| San Carlos California ZIP codes | 9.7 mi | 1 ZIP code |
| Pacifica California ZIP codes | 9.8 mi | 1 ZIP code |
| San Bruno California ZIP codes | 11 mi | 1 ZIP code |
| Redwood City California ZIP codes | 13 mi | 5 ZIP codes |
Straight-line distance between place reference points, not driving distance.