Cold Spring Harbor, NY 11724 ZIP Code Profile

Related Place Profiles:
Cold Spring Harbor, NY

ZIP Code 11724: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Cold Spring Harbor, NY 11724

Acceptable Alternative
Cold Spg Hbr, NY 11724

  • ZIP Code Type: STANDARD
  • County: Suffolk County
  • Centroid: Latitude 40.866, Longitude -73.451
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 191
  • PO Box Addresses: 114
  • Residential Addresses: 1,036
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1,036

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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11724 ZIP Code Map

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Cold Spring Harbor, NY 11724 Data & Demographics (As of July 1, 2017)


Total Population 2,952
Daytime Population: Workers 1,080
Daytime Population: Residents 1,513
Total Daytime Population (TDP) 2,593
Ratio TDP/Total Population1 0.88
Population in Households 2,906
Population in Familes 2,724
Population in Group Qrtrs 46
Population Density2 742
Diversity Index3 21


Median Household Income $172,992
Average Household Income $246,590
Per Capita Income $77,681


Total Housing Units 994 (100%)
Owner Occupied HU 848 (85.3%)
Renter Occupied HU 76 ( 7.6%)
Vacant Housing Units 70 ( 7.0%)
Median Home Value $1,000,001
Average Home Value $1,098,555


Total Households 924
Average Household Size 3.15
Family Households 801
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.3% -0.06%
Households -0.4% -0.15%
Families -0.46% -0.2%
Median Household Income   0.7%
Per Capita Income   1.44%

Cold Spring Harbor, NY 11724 - Peer Comparisons by Rank and Percentile

The table below compares 11724 to the other 1,745 ZIP Codes in New York by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 916 48th
Population Density # 608 65th
Diversity Index # 875 50th
Median Household Income # 24 99th
Per Capita Income # 59 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE New York Census Data Comparison Tool.

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