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City ZIP codes · Massachusetts

Somerville, MA ZIP Codes

3 ZIP codes use the postal name Somerville, Massachusetts (Census 2020 ZCTAs and GeoNames postal codes, October 2026), all residential. Median household income runs from $123,755 in 02145 to $150,313 in 02144, 1.2 times as much (Census Bureau, ACS 2020-2024). Somerville's most populous ZIP code is 02145, with 27,495 people (ACS 2020-2024); 100% of its land is in the city of Somerville.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Somerville's ZIP codes?

02143: $131k median household income02144: $150k median household income02145: $124k median household income02144021430214502143: $131k median household income02144: $150k median household income02145: $124k median household income02144021430214502143: $131k median household income02144: $150k median household income02145: $124k median household income021440214302145
The 3 residential ZIP codes named Somerville, 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 Somerville's ZIP codes?

The highest median household income is in 02144 ($150,313), the lowest in 02145 ($123,755). Home values run from $828,600 in 02145 to $988,800 in 02144.

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

All 3 residential ZIP codes of Somerville

Residential ZIP codes with the postal name Somerville, MA, largest first (ACS 2020-2024); sort by any column
County
02145 Middlesex County 27,495 19,766 $124k $829k
02143 Middlesex County 25,513 16,524 $131k $927k
02144 Middlesex County 25,448 23,304 $150k $989k

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).

Which counties do Somerville's ZIP codes reach?

Somerville's residential ZIP codes lie in Middlesex County.

Which first three digits do Somerville'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 Somerville starts with 021.

Three-digit prefixes of Somerville'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 Somerville's
PrefixSectional centerHereAll codes
021 Boston, MA (SCF 021) 3 62

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