ZIP code 01451: Harvard, MA
ZIP code 01451 is in Worcester County, Massachusetts, outside any city or Census-designated place. It is in Massachusetts's 3rd congressional district. Its state senate district is Middlesex and Worcester District; its state house district is 37th Middlesex District.
See it on the mapAll of Massachusetts
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Worcester County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Harvard town | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Massachusetts's 3rd congressional district (MA-03) | 100% |
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| Middlesex and Worcester District | 100% |
| State house district | Share of ZIP residents |
|---|---|
| 37th Middlesex District | 100% |
Voting precincts
1 voting precinct overlap ZIP 01451. 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:01451")
ZIP 01451 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.