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ZIP Code 11787
Smithtown, NY, Suffolk County
Population
34,499
Land area
14.9sq mi
People per sq mi
2,316
City
Smithtown
ZIP 11787 and nearby ZIP codes
ZIP 11787 at a glance
- ZIP 11787 (Smithtown) is about 5.5 times as dense as New York as a whole.
- The median household income is $143,101, 66% above the New York median of $85,974.
- A typical owner-occupied home is valued at $679,800 (60% above New York) and median rent is $2,330 a month.
Local data for ZIP 11787
Counts from official public data
Housing and community stats
ZIP 11787, American Community Survey 2020-2024
Median household income
$143,101
Poverty rate
4.8%
Median home value
$679,800
Prices +6.1% in a year
Median rent
$2,330/mo
Homeownership
87.3%
Bachelor's or higher
52.9%
Median age
46.3
Average commute
32.4 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
1,454
ZIP Business Patterns 2023
Employees
18,002
$926M annual payroll
PPP loans
$134M
1,560 loans
Campaign donations
$178K
8% D, 25% R, 2026 cycle
Environment and hazard risk
ZIP 11787, 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
46.0 inches of rain a year
Health statistics
Share of adults in ZIP 11787, CDC PLACES estimates
Obesity
27.1%
U.S. 33.3% -6.2 pts
Diabetes
8.8%
U.S. 12.1% -3.3 pts
Smoking
8.1%
U.S. 12.8% -4.7 pts
Uninsured (18-64)
4.3%
U.S. 11.1% -6.8 pts
Frequently asked questions
- What city is ZIP code 11787?
- ZIP code 11787 is in Smithtown, NY (Suffolk County).
- What county is ZIP code 11787 in?
- ZIP code 11787 is mostly in Suffolk County, New York.
- How many people live in ZIP code 11787?
- About 34,499 people live in the 11787 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.