ZipCodeLook
11724

Zip code 11724: Cold Spring Harbor, New York

Residential delivery areaSuffolk CountyEastern Time
Population
3,073
Median household income
$250K+
U.S. $81K
Median home value
$1.6M
U.S. $333K
Median rent
—
U.S. $1,413
Median age
41.5
U.S. 38.9
Land area
3.9 sq mi
796 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 11724

11724 is a suburban zip code in Cold Spring Harbor, New York (Suffolk County), covering 3.9 sq mi of land. About 3,073 people live here, or 796 per square mile. The median resident is 41.5 years old, compared with 38.9 nationally.

The median household income is $250,000+ a year, the Census Bureau's reporting limit (U.S.: $80,734). 2.3% of residents live below the poverty line (U.S.: 12.5%). The median home value is $1,641,000. 93% of occupied homes are lived in by their owners.

79% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 34.9 minutes each way, and 30% of workers work from home. The most common jobs among working residents are in management; business and finance; and sales. 24% of them are self-employed (U.S.: 10%).

How 11724 compares

Sorted from highest to lowest national percentile

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Median age
41.5
Under 18
29.4%
65 and over
14.4%

Race and ethnicity

  • White87%
  • Black0.4%
  • Hispanic3%
  • Asian4%
  • Native American0%
  • Pacific Islander0%
  • Other2%
  • Multiracial4%
Diversity index
24.6
U.S. 61.4
Foreign-born
7.9%
U.S. 14.1%
Born in state
74.5%

Language spoken at home (households)

English only
88%
Spanish
3%
Other Indo-European
8%
Asian / Pacific
0.4%
Other
0.8%

Households

Households
1,017
Average household size
2.9
Family households
82%
Married couples
73.8%
Living alone
17.3%
Veterans (of adults)
2.9%
Male / female
52% / 48%

Income and poverty

Household income distribution

<$25k
4%
$25–50k
4%
$50–75k
5%
$75–100k
5%
$100–150k
9%
$150–200k
14%
$200k+
60%

Median household income

11724
$250,000+
Suffolk Co.
$130,686
New York
$85,974
United States
$80,734
Per capita income
$112,377
U.S. $44,673
Poverty rate
2.3%
U.S. 12.5%
Households earning $150K+
73.5%
U.S. 23%
Income inequality (Gini)
0.437
U.S. 0.483

Housing

Median home value

11724
$1,641,000
Suffolk Co.
$578,400
New York
$423,800
United States
$332,700

Median gross rent

11724
—
Suffolk Co.
$2,255
New York
$1,621
United States
$1,413

Types of housing

Single-family
97%
2–4 units
2%
5–19 units
0%
20+ units
0.7%
Mobile home
0%
Boat, RV, van
0%
Housing units
1,068
Owner-occupied
92.7%
Vacant
4.8%
Median year built
1961
Median rooms
9 or more
Renters paying 30%+ of income
0%
Renters paying 50%+ of income
0%
Home value to income
6.6× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone
46%
Carpooled
2%
Transit
12%
Walked
5%
Bicycle
0%
Worked from home
30%
Other
6%

Commute time (one way)

<10 min
6%
10–19
27%
20–29
13%
30–44
27%
45–59
5%
60+
22%
Average commute
34.9 min
U.S. 26.4 min
Unemployment
1%
U.S. 5.2%
In labor force
63.7%
U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management
31%
Business and finance
11%
Sales
10%
Legal and social services
8%
Healthcare
7%
Education
6%
Office and admin
6%
Engineering and science
6%
Arts, media and sports
5%
Computer and math
3%
Cleaning and personal care
2%
Construction and repair
2%
Transportation and moving
1%
Production
0.5%
Food service
0.3%
Farming, fishing and forestry
0.3%
Police and fire
0%

Industries

Finance, insurance and real estate
20%
Professional and technical services
19%
Health care and social assistance
18%
Retail
8%
Education
7%
Manufacturing
6%
Transportation, warehousing and utilities
5%
Construction
3%
Other services
3%
Wholesale
2%
Arts and recreation
2%
Restaurants and hotels
2%
Information
1%
Agriculture and mining
1%
Admin, support and management
1%
Public administration
0.7%
Median earnings per worker
$120,884
U.S. $49,666
Self-employed
23.6%
U.S. 10%
Government workers
6.2%
U.S. 14.5%
Nonprofit workers
15.3%
U.S. 8.8%

Median earnings by type of work

Type of work11724U.S.
Management, business, science and arts$141,000$74,888
Service$40,156$26,804
Sales and office$73,636$40,476
Construction and maintenance$140,938$49,199
Production and transportation$18,750$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma
2%
High school
6%
Some college
6%
Associate's
6%
Bachelor's
41%
Graduate
39%
High school graduate or higher
98%
Bachelor's degree or higher
79.4%
Graduate or professional degree
38.6%
Households with broadband
97.4%
Cable, fiber or DSL
85.1%
No internet access
0.8%
Without health insurance
1.1%
Limited-English households
0%

Geography

Center point
40.8643° N, 73.4564° W
Land area
3.9 sq mi
Water area
0.5 sq mi
Time zone
Eastern Time (UTC-5, UTC-4 in summer)
Zip type
Residential delivery area

Cities and towns within this zip

  • Cold Spring Harbor (unincorporated)85% of zip
  • Lloyd Harbor14% of zip
  • Huntington (unincorporated)1% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 11724

ZipCityDistanceIncome
11743Huntington2.2 mi$183,187
11797Woodbury3.2 mi$192,609
11791Syosset3.5 mi$202,962
11773Syosset · PO box3.6 mi—
11771Oyster Bay3.7 mi$157,923
11732East Norwich4.6 mi$148,965
11740Greenlawn5 mi$152,386
11721Centerport5.2 mi$197,179
11760Melville · PO box5.4 mi—
11775Melville · PO box5.4 mi—
11765Mill Neck5.5 mi$196,902
11803Plainview5.8 mi$187,514

Zip codes like 11724 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 11724

What city is zip code 11724?

11724 is assigned to Cold Spring Harbor, New York. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 11724 in?

11724 is in Suffolk County, New York.

What is the population of 11724?

About 3,073 people live in 11724, according to the Census Bureau's American Community Survey.

What time zone is 11724 in?

11724 is in Eastern Time.

What is the median household income in 11724?

The median household income in 11724 is $250,000+.

What zip codes are near 11724?

The closest zip codes to 11724 are 11743, 11797, 11791, 11773, 11771.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 11724, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.