ZIP code 02145: Somerville, MA
ZIP code 02145 is in Somerville, in Middlesex County, Massachusetts. It is in Massachusetts's 7th congressional district (100%) and Massachusetts's 5th congressional district (0.3%). Its state senate district is Second Middlesex District; its state house districts are 34th Middlesex District (41%), 26th Middlesex District (36%) and 27th Middlesex District (23%).
See it on the mapAll of Massachusetts
City and county
| City or town | Share of ZIP residents |
|---|---|
| Somerville | 100% |
| Medford | 0.3% |
| County | Share of ZIP residents |
|---|---|
| Middlesex County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Somerville city | 100% |
| Medford city | 0.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Massachusetts's 7th congressional district (MA-07) | 100% |
| Massachusetts's 5th congressional district (MA-05) | 0.3% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| Second Middlesex District | 100% |
| State house district | Share of ZIP residents |
|---|---|
| 34th Middlesex District | 41% |
| 26th Middlesex District | 36% |
| 27th Middlesex District | 23% |
Voting precincts
13 voting precincts overlap ZIP 02145. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:02145")
ZIP 02145 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.