Home > NY > Suffolk County > Cold Spring Harbor > Zip 11724

Zip Code 11724 — Cold Spring Harbor, NY

11724 is a ZIP Code associated with Cold Spring Harbor, NY, located within Suffolk. The postal region supports an estimated population of 3,073 residents across Data Pending housing units, with a population density of 307.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.865220, -73.452880)

Data MetricLocal Statistic
Postal / Zip Code11724
Primary CityCold Spring Harbor
State / ProvinceNY
CountySuffolk
Total Population3,073
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density307.3 people/sq mi
TimezoneAmerica/New_York

How 11724 Compares

MetricZIP 11724Suffolk CountyNY State Average
Population3,0731,476,04419,771,902
Median IncomeData PendingN/AN/A
Population Density307.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 11743Huntington1.7 mi43,490N/A
Zip 11797Woodbury3.4 mi9,402N/A
Zip 11791Syosset3.7 mi25,520N/A
Zip 11771Oyster Bay3.9 mi10,908N/A
Zip 11721Centerport4.7 mi6,426N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →