Boundary Atlas

ZIP code 11596: Williston Park, NY

ZIP code 11596 is in Williston Park (66% of residents), East Williston (24%) and Herricks (9.6%), in Nassau County, New York. It is in New York's 3rd congressional district. Its state senate district is State Senate District 7; its state house districts are Assembly District 19 (90%) and Assembly District 16 (9.6%).

10,849residents (2020 Census)
1.3 sq miland area
4cities and towns
1congressional district
11voting precincts

See it on the mapAll of New York

City and county

City or townShare of ZIP residents
Williston Park66%
East Williston24%
Herricks9.6%
Mineola0.4%

CountyShare of ZIP residents
Nassau County100%

Town or county subdivisionShare of ZIP residents
North Hempstead town100%

Congressional district

Congressional districtShare of ZIP residents
New York's 3rd congressional district (NY-03)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 7100%

State house districtShare of ZIP residents
Assembly District 1990%
Assembly District 169.6%

Voting precincts

11 voting precincts overlap ZIP 11596. 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:11596")

ZIP 11596 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.