ZIP code 11724 is in Cold Spring Harbor (89% of residents), Lloyd Harbor (7.6%) and Huntington (3.7%), in Suffolk County, New York. It is in New York's 3rd congressional district. Its state senate district is State Senate District 2; its state house districts are Assembly District 10 (76%) and Assembly District 12 (24%).
Keith Brown (Republican/Conservative/Independence)
631-261-4151
24%
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).
7 voting precincts overlap ZIP 11724.
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:11724")
ZIP 11724 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.