Boundary Atlas

ZIP code 11950: Mastic, NY

ZIP code 11950 is in Mastic (94% of residents), Shirley (1.8%) and Mastic Beach (1.4%), in Suffolk County, New York. It is in New York's 2nd congressional district. Its state senate district is State Senate District 3; its state house districts are Assembly District 3 (100%) and Assembly District 2 (<0.1%).

16,233residents (2020 Census)
3.7 sq miland area
3cities and towns
1congressional district
10voting precincts

See it on the mapAll of New York

City and county

City or townShare of ZIP residents
Mastic94%
Shirley1.8%
Mastic Beach1.4%

CountyShare of ZIP residents
Suffolk County100%

Town or county subdivisionShare of ZIP residents
Brookhaven town97%
Poospatuck Reservation2.7%

Congressional district

Congressional districtShare of ZIP residents
New York's 2nd congressional district (NY-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (NY-02)Andrew R. Garbarino (R)202-225-7896100%
U.S. SenatorCharles E. Schumer (D)202-224-6542 · contact formstatewide
U.S. SenatorKirsten E. Gillibrand (D)202-224-4451 · contact formstatewide
State Senator (State Senate District 3)Dean Murray (Republican/Conservative)631-360-3356100%
Assembly Member (Assembly District 3)Joe DeStefano (Republican/Conservative)631-207-0073100%
Assembly Member (Assembly District 2)Jodi Giglio (Republican/Conservative)631-727-0204<0.1%

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
State Senate District 3100%

State house districtShare of ZIP residents
Assembly District 3100%
Assembly District 2<0.1%

Voting precincts

10 voting precincts overlap ZIP 11950. Map them, with each precinct's share of the ZIP's residents.

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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:

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ZIP 11950 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.