Signal Hill California ZIP Codes

Signal Hill holds a single ZIP code.

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Signal Hill codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Signal Hill. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

Every Signal Hill ZIP code begins 907. Those first three digits identify the sectional center facility that processes mail for this part of California. Statewide that range covers 31 ZIP codes, so Signal Hill accounts for 3% of it.

Every California ZIP prefix and the region it covers →

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 Signal Hill occupies.

• 562 Area code 562

These codes are associated with Signal Hill through county-level matching, not a per-address guarantee.

Signal Hill California area codes in full →

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