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City ZIP codes · California

Lompoc, CA ZIP Codes

3 ZIP codes use the postal name Lompoc, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 2 residential and 1 for PO boxes or a single organization. Median household income runs from $80,097 in 93436 to $84,167 in 93437 (Census Bureau, ACS 2020-2024). Lompoc's most populous ZIP code is 93436, with 55,820 people (ACS 2020-2024); 5% of its land is in the city of Lompoc.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Lompoc's ZIP codes?

93436: $80k median household income93437: $84k median household income934369343793436: $80k median household income93437: $84k median household income934369343793436: $80k median household income93437: $84k median household income9343693437
The 2 residential ZIP codes named Lompoc, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it.<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Lompoc's ZIP codes?

The highest median household income is in 93437 ($84,167), the lowest in 93436 ($80,097).

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 2 residential ZIP codes of Lompoc

Residential ZIP codes with the postal name Lompoc, CA, largest first (ACS 2020-2024); sort by any column
County
93436 Santa Barbara County 55,820 245 $80k $504k
93437 Santa Barbara County 3,477 70 $84k –

Download the 3 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

PO Box and single-organization ZIP codes in Lompoc

1 ZIP code named Lompoc has no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Lompoc, CA: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
93438Santa Barbara County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Lompoc's ZIP codes reach?

Lompoc's residential ZIP codes lie in Santa Barbara County.

Which places do Lompoc's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Lompoc's residential ZIP codes cover Lompoc itself and 3 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

  • Mission Hills census-designated 93436
  • Vandenberg AFB census-designated 93437
  • Vandenberg Village census-designated 93436

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Lompoc's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Lompoc starts with 934.

Three-digit prefixes of Lompoc's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Lompoc's
PrefixSectional centerHereAll codes
934Santa Barbara, CA (SCF 931)353

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.