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City ZIP codes · California

Petaluma, CA ZIP Codes

6 ZIP codes use the postal name Petaluma, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 2 residential and 4 for PO boxes or a single organization. Median household income runs from $113,527 in 94954 to $117,343 in 94952 (Census Bureau, ACS 2020-2024). Petaluma's most populous ZIP code is 94954, with 37,574 people (ACS 2020-2024); 14% of its land is in the city of Petaluma.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Petaluma's ZIP codes?

94952: $117k median household income94954: $114k median household income949529495494952: $117k median household income94954: $114k median household income949529495494952: $117k median household income94954: $114k median household income9495294954
The 2 residential ZIP codes named Petaluma, 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 Petaluma's ZIP codes?

The highest median household income is in 94952 ($117,343), the lowest in 94954 ($113,527). Home values run from $840,500 in 94954 to $1,041,100 in 94952.

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

All 2 residential ZIP codes of Petaluma

Residential ZIP codes with the postal name Petaluma, CA, largest first (ACS 2020-2024); sort by any column
County
94954 Sonoma County 37,574 604 $114k $841k
94952 Marin County 33,785 170 $117k $1.04M

Download the 6 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 Petaluma

4 ZIP codes named Petaluma have 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.

Petaluma, 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
94953Sonoma County
94955Sonoma County
94975Sonoma County
94999Sonoma County

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

Which counties do Petaluma's ZIP codes reach?

Petaluma's residential ZIP codes lie in 2 counties: Marin County (1 ZIP code mainly there), Sonoma County (1 ZIP code mainly there).

Which places do Petaluma's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Petaluma's residential ZIP codes cover Petaluma 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:

  • Bloomfield census-designated 94952
  • Petaluma Center census-designated 94952
  • Valley Ford census-designated 94952

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

Which first three digits do Petaluma'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 Petaluma starts with 949.

Three-digit prefixes of Petaluma'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 Petaluma's
PrefixSectional centerHereAll codes
949 North Bay, CA (SCF 949) 6 55

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