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City ZIP codes · California

Costa Mesa, CA ZIP Codes

3 ZIP codes use the postal name Costa Mesa, 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 $108,994 in 92627 to $114,249 in 92626 (Census Bureau, ACS 2020-2024). Costa Mesa's most populous ZIP code is 92627, with 60,393 people (ACS 2020-2024); 95% of its land is in the city of Costa Mesa.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Costa Mesa's ZIP codes?

92626: $114k median household income92627: $109k median household income926269262792626: $114k median household income92627: $109k median household income926269262792626: $114k median household income92627: $109k median household income9262692627
The 2 residential ZIP codes named Costa Mesa, 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 Costa Mesa's ZIP codes?

The highest median household income is in 92626 ($114,249), the lowest in 92627 ($108,994). Home values run from $1,105,900 in 92626 to $1,125,600 in 92627.

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

All 2 residential ZIP codes of Costa Mesa

Residential ZIP codes with the postal name Costa Mesa, CA, largest first (ACS 2020-2024); sort by any column
County
92627 Orange County 60,393 9,439 $109k $1.13M
92626 Orange County 50,708 5,225 $114k $1.11M

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 Costa Mesa

1 ZIP code named Costa Mesa 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.

Costa Mesa, 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
92628Orange County

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

Which counties do Costa Mesa's ZIP codes reach?

Costa Mesa's residential ZIP codes lie in Orange County.

Which first three digits do Costa Mesa'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 Costa Mesa starts with 926.

Three-digit prefixes of Costa Mesa'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 Costa Mesa's
PrefixSectional centerHereAll codes
926 Santa Ana, CA (SCF 926) 3 62

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