Boundary Atlas

ZIP code 02649: Mashpee, MA

ZIP code 02649 is in Mashpee Neck (7.1% of residents), New Seabury (5.7%), Seabrook (3.0%) and Popponesset (1.9%), in Barnstable County, Massachusetts. 82% of its residents live outside city limits. It is in Massachusetts's 9th congressional district. Its state senate district is Plymouth and Barnstable District; its state house district is 3rd Barnstable District.

15,060residents (2020 Census)
23.4 sq miland area
7cities and towns
1congressional district
5voting precincts

See it on the mapAll of Massachusetts

City and county

City or townShare of ZIP residents
Mashpee Neck7.1%
New Seabury5.7%
Seabrook3.0%
Popponesset1.9%
Monomoscoy Island0.9%
Seconsett Island0.7%
Popponesset Island0.3%

CountyShare of ZIP residents
Barnstable County100%

Town or county subdivisionShare of ZIP residents
Mashpee town100%

Congressional district

Congressional districtShare of ZIP residents
Massachusetts's 9th congressional district (MA-09)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MA-09)William R. Keating (D)202-225-3111100%
U.S. SenatorEdward J. Markey (D)202-224-2742 · contact formstatewide
U.S. SenatorElizabeth Warren (D)202-224-4543 · contact formstatewide
State Senator (Plymouth and Barnstable District)Dylan Fernandes (Democratic)100%
State Representative (3rd Barnstable District)Dave Vieira (R)508-548-8683100%

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
Plymouth and Barnstable District100%

State house districtShare of ZIP residents
3rd Barnstable District100%

Voting precincts

5 voting precincts overlap ZIP 02649. 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:02649")

ZIP 02649 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.