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City ZIP codes · Massachusetts

Brockton, MA ZIP Codes

5 ZIP codes use the postal name Brockton, Massachusetts (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 2 residential and 3 for PO boxes or a single organization. Median household income runs from $74,214 in 02301 to $92,274 in 02302, 1.2 times as much (Census Bureau, ACS 2020-2024). Brockton's most populous ZIP code is 02301, with 68,969 people (ACS 2020-2024); 100% of its land is in the city of Brockton.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Brockton's ZIP codes?

02301: $74k median household income02302: $92k median household income023010230202301: $74k median household income02302: $92k median household income023010230202301: $74k median household income02302: $92k median household income0230102302
The 2 residential ZIP codes named Brockton, 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 Brockton's ZIP codes?

The highest median household income is in 02302 ($92,274), the lowest in 02301 ($74,214). Home values run from $424,800 in 02302 to $449,400 in 02301.

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

All 2 residential ZIP codes of Brockton

Residential ZIP codes with the postal name Brockton, MA, largest first (ACS 2020-2024); sort by any column
County
02301 Plymouth County 68,969 5,541 $74k $449k
02302 Plymouth County 36,417 4,100 $92k $425k

Download the 5 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 Brockton

3 ZIP codes named Brockton 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.

Brockton, MA: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
02303Plymouth County
02304Plymouth County
02305Plymouth County

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

Which counties do Brockton's ZIP codes reach?

Brockton's residential ZIP codes lie in Plymouth County.

Which first three digits do Brockton'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 Brockton starts with 023.

Three-digit prefixes of Brockton'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 Brockton's
PrefixSectional centerHereAll codes
023 Brockton, MA (SCF 023) 5 45

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