ZIP code 11724: Cold Spring Harbor, NY
11724 is a ZIP code in Cold Spring Harbor, New York, mainly in Suffolk County, part of the New York-Newark-Jersey City, NY-NJ metro area. About 3,073 people live here.
- Population
- 3,073
- Median household income
- $250,001
- Typical home value
- $1,893,500+8.7% in 12 months
- Median rent
- —gross, per month
- Median age
- 41.5
- Homeowners
- 92.7%of occupied homes
Shaded: ZIP code 11724's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 11724 details
| City | Cold Spring Harbor |
|---|---|
| State | New York |
| County | Suffolk County |
| Metro area | New York-Newark-Jersey City, NY-NJ |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 3.9 sq mi, plus 0.5 sq mi of water |
| Population density | 796 people per sq mi |
| Bachelor's degree or higher | 79.4% of adults 25+ |
| Average commute | 34.9 minutes |
| Center coordinates | 40.86432, -73.45641 |
ZIP codes near 11724
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 11743 | Huntington, NY | 2.2 mi | 43,490 |
| 11797 | Woodbury, NY | 3.2 mi | 9,402 |
| 11791 | Syosset, NY | 3.5 mi | 25,520 |
| 11773 | Syosset, NY | 3.6 mi | — |
| 11771 | Oyster Bay, NY | 3.7 mi | 10,908 |
| 11732 | East Norwich, NY | 4.6 mi | 3,228 |
| 11740 | Greenlawn, NY | 5.0 mi | 10,127 |
| 11721 | Centerport, NY | 5.2 mi | 6,426 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 11724?
A typical home in ZIP code 11724 is worth about $1,893,500 (Zillow Home Value Index). The median household here earns $250,001 a year. See what buying here would cost per month, with New York average taxes and insurance filled in.
Monthly payment for a $1,893,500 homeWhat can a $250,001 income afford?Rental property numbers
About ZIP code 11724
What city is ZIP code 11724?
ZIP code 11724 is in Cold Spring Harbor, NY, in Suffolk County.
What county is ZIP code 11724 in?
11724 is mainly in Suffolk County, New York.
What is the population of ZIP code 11724?
About 3,073 people live in ZIP code 11724, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 11724 in?
11724 is in Eastern Time (UTC−5). It observes daylight saving time.