ZIP code · Cold Spring Harbor · New York · United States
ZIP code 11724 — Cold Spring Harbor
ZIP code 11724 serves Cold Spring Harbor, New York.
- Postal code
- 11724Single source Value from one source, not cross-checked.
- County
- Suffolk FIPS 36103
- State
- New York
- Country
- United States
- Coordinates
- 40.8601, -73.4423 — precision precise (locality)
View on OpenStreetMap - Population
- 2,956 (ZCTA, ACS 5-year)
- Population density
- 766 / sq mi
- Land area
- 3.9 sq mi (10 km²) (ZCTA, ACS 5-year)
- Median household income
- $250,000+
- Per-capita income
- $94,955
- Median age
- 40.2
- Households
- 977
- Housing units
- 1,059
- Median home value
- $1,571,600
- Median gross rent
- $2,692 / month
- Congressional district
- NY-3 (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 845Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 11724 with another ZIP · ZIPs within 25 miles · distance from 11724
Map of ZIP code 11724
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 25°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 38 | 40 | 47 | 60 | 70 | 78 | 83 | 81 | 74 | 63 | 52 | 43 |
| Avg low °F | 25 | 25 | 31 | 41 | 51 | 60 | 66 | 65 | 59 | 49 | 39 | 31 |
| Precip in | 3.7 | 3.1 | 4.2 | 4.1 | 3.9 | 4.3 | 3.8 | 4.3 | 4.7 | 4.3 | 3.5 | 4.6 |
NOAA 1991–2020 climate normals from the nearest station: CENTERPORT (4.0 mi) · NOAA NCEI
Places in ZIP 11724
- 2 schools
- 1 colleges & universities
- 7 restaurants & cafés
- 3 parks
- 3 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 1 post offices
- 1 banks
- 2 gas stations
- 1 EV charging stations
- 2 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page