Cold Spring Harbor, New York
Cold Spring Harbor is a Census-designated place (an unincorporated community) in Suffolk County, New York, with 3,064 residents in 2020. It is in New York's 3rd congressional district. It spans 2 state house districts. Its state senate district is State Senate District 2.
County
| County | Share of residents |
|---|---|
| Suffolk County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| New York's 3rd congressional district (NY-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (NY-03) | Thomas R. Suozzi (D) | 202-225-3335 | 100% |
| U.S. Senator | Charles E. Schumer (D) | 202-224-6542 · contact form | statewide |
| U.S. Senator | Kirsten E. Gillibrand (D) | 202-224-4451 · contact form | statewide |
| State Senator (State Senate District 2) | Mario Mattera (Republican/Conservative) | 631-361-2154 | 100% |
| Assembly Member (Assembly District 10) | Steve Stern (Democratic) | 631-271-8025 | 82% |
| Assembly Member (Assembly District 12) | Keith Brown (Republican/Conservative/Independence) | 631-261-4151 | 18% |
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
- Cold Spring Harbor laws: search for the Cold Spring Harbor, New York code of ordinances
- Suffolk County website: https://suffolkcountyny.gov/
- Suffolk County laws: search for the Suffolk County, New York code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 2 | 100% |
| State house district | Share of residents |
|---|---|
| Assembly District 10 | 82% |
| Assembly District 12 | 18% |
ZIP codes
Percentages mark ZIPs only partly in Cold Spring Harbor: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Cold Spring Harbor's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:3616958")
Cold Spring Harbor here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.