ZIP code 02111: Boston, MA
ZIP code 02111 is in Boston, in Suffolk County, Massachusetts. It is in Massachusetts's 7th congressional district (65%) and Massachusetts's 8th congressional district (35%). Its state senate districts are First Suffolk District (65%) and Third Suffolk District (35%); its state house district is 3rd Suffolk District.
See it on the mapAll of Massachusetts
City and county
| City or town | Share of ZIP residents |
|---|---|
| Boston | 100% |
| County | Share of ZIP residents |
|---|---|
| Suffolk County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Boston city | 100% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Massachusetts's 7th congressional district (MA-07) | 65% |
| Massachusetts's 8th congressional district (MA-08) | 35% |
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 |
|---|---|
| First Suffolk District | 65% |
| Third Suffolk District | 35% |
| State house district | Share of ZIP residents |
|---|---|
| 3rd Suffolk District | 100% |
Voting precincts
4 voting precincts overlap ZIP 02111. 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:02111")
ZIP 02111 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.