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ZIP Code 11731
Commack, NY, Suffolk County
Population
29,999
Land area
8.3sq mi
People per sq mi
3,605
City
Commack
ZIP 11731 and nearby ZIP codes
ZIP 11731 at a glance
- ZIP 11731 (Commack) is about 8.6 times as dense as New York as a whole.
- Households here earn a median of $161,132 a year, 87% more than the New York figure of $85,974.
- A typical owner-occupied home is valued at $646,600 (53% above New York) and median rent is $2,412 a month.
Local data for ZIP 11731
Counts from official public data
Housing and community stats
ZIP 11731, American Community Survey 2020-2024
Median household income
$161,132
Poverty rate
6.0%
Median home value
$646,600
Prices +6.8% in a year
Median rent
$2,412/mo
Homeownership
90.4%
Bachelor's or higher
53.2%
Median age
46.2
Average commute
35.9 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
871
ZIP Business Patterns 2023
Employees
6,541
$257M annual payroll
PPP loans
$63M
964 loans
Campaign donations
$112K
17% D, 40% R, 2026 cycle
Environment and hazard risk
ZIP 11731, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: winter weather
Storm events since 1996
1,830
Countywide, mostly thunderstorm wind
Flood insurance policies
26,160
5.4% of homes, county
July high / Jan low
83° / 25°F
48.5 inches of rain a year
Health statistics
Share of adults in ZIP 11731, CDC PLACES estimates
Obesity
27.0%
U.S. 33.3% -6.3 pts
Diabetes
8.6%
U.S. 12.1% -3.5 pts
Smoking
8.0%
U.S. 12.8% -4.8 pts
Uninsured (18-64)
4.3%
U.S. 11.1% -6.8 pts
Frequently asked questions
- What city is ZIP code 11731?
- ZIP code 11731 is in Commack, NY (Suffolk County).
- What county is ZIP code 11731 in?
- ZIP code 11731 is mostly in Suffolk County, New York.
- How many people live in ZIP code 11731?
- About 29,999 people live in the 11731 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.