ZIP code 02445: Brookline, MA
ZIP code 02445 is in Brookline (99% of residents) and Boston (1.3%), in Norfolk County (99%) and Suffolk County (1.3%), Massachusetts. It is in Massachusetts's 4th congressional district (99%), Massachusetts's 7th congressional district (0.6%) and Massachusetts's 8th congressional district (0.6%). Its state senate districts are Norfolk and Middlesex District (99%), Suffolk and Middlesex District (0.6%) and Norfolk and Suffolk District (0.6%); its state house districts are 15th Norfolk District (62%), 12th Middlesex District (24%), 17th Suffolk District (12%), 10th Suffolk District (0.6%) and 18th Suffolk District (0.4%).
See it on the mapAll of Massachusetts
City and county
| City or town | Share of ZIP residents |
|---|---|
| Brookline | 99% |
| Boston | 1.3% |
| County | Share of ZIP residents |
|---|---|
| Norfolk County | 99% |
| Suffolk County | 1.3% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Brookline town | 99% |
| Boston city | 1.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Massachusetts's 4th congressional district (MA-04) | 99% |
| Massachusetts's 7th congressional district (MA-07) | 0.6% |
| Massachusetts's 8th congressional district (MA-08) | 0.6% |
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 |
|---|---|
| Norfolk and Middlesex District | 99% |
| Suffolk and Middlesex District | 0.6% |
| Norfolk and Suffolk District | 0.6% |
| State house district | Share of ZIP residents |
|---|---|
| 15th Norfolk District | 62% |
| 12th Middlesex District | 24% |
| 17th Suffolk District | 12% |
| 10th Suffolk District | 0.6% |
| 18th Suffolk District | 0.4% |
Voting precincts
12 voting precincts overlap ZIP 02445. 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:02445")
ZIP 02445 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.