Boundary Atlas

ZIP code 10604: Harrison, NY

ZIP code 10604 is in Harrison (65% of residents) and White Plains (34%), in Westchester County, New York. It is in New York's 16th congressional district (98%) and New York's 17th congressional district (1.6%). Its state senate district is State Senate District 37; its state house districts are Assembly District 93 (100%) and Assembly District 91 (<0.1%).

11,526residents (2020 Census)
6.8 sq miland area
3cities and towns
2congressional districts
15voting precincts

See it on the mapAll of New York

City and county

City or townShare of ZIP residents
Harrison65%
White Plains34%
Rye Brook<0.1%

CountyShare of ZIP residents
Westchester County100%

Town or county subdivisionShare of ZIP residents
Harrison town65%
White Plains city34%
North Castle town1.6%
Rye town<0.1%

Congressional districts

Congressional districtShare of ZIP residents
New York's 16th congressional district (NY-16)98%
New York's 17th congressional district (NY-17)1.6%

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.

Elected officials

OfficeMemberContactShare of residents
MayorJustin C. Brasch914-422-141134%
U.S. Representative (NY-16)George Latimer (D)202-225-246498%
U.S. Representative (NY-17)Michael Lawler (R)202-225-65061.6%
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 37)Shelley Mayer (Democratic/Working Families)914-934-5250100%
Assembly Member (Assembly District 93)Chris Burdick (Democratic/Independence/Working Families)914-244-4450100%
Assembly Member (Assembly District 91)Steve Otis (Democratic)914-939-7028<0.1%

Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); 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 37100%

State house districtShare of ZIP residents
Assembly District 93100%
Assembly District 91<0.1%

Voting precincts

15 voting precincts overlap ZIP 10604. 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:

related_geographies(id="us:zcta:10604")

ZIP 10604 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.