Checked
ZIP Code 11742
Holtsville, NY, Suffolk County
Population
13,202
Land area
5.1sq mi
People per sq mi
2,564
City
Holtsville
ZIP 11742 and nearby ZIP codes
ZIP 11742 at a glance
- ZIP 11742 (Holtsville) is about 6.1 times as dense as New York as a whole.
- Households here earn a median of $125,162 a year, 46% more than the New York figure of $85,974.
- A typical owner-occupied home is valued at $510,200 (20% above New York) and median rent is $2,400 a month.
Local data for ZIP 11742
Counts from official public data
Housing and community stats
ZIP 11742, American Community Survey 2020-2024
Median household income
$125,162
Poverty rate
5.6%
Median home value
$510,200
Prices +2.3% in a year
Median rent
$2,400/mo
Homeownership
83.6%
Bachelor's or higher
36.1%
Median age
39.3
Average commute
30.7 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
345
ZIP Business Patterns 2023
Employees
5,410
$398M annual payroll
PPP loans
$56.5M
355 loans
Campaign donations
$28.6K
21% D, 34% R, 2026 cycle
Environment and hazard risk
ZIP 11742, 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 11742, CDC PLACES estimates
Obesity
29.6%
U.S. 33.3% -3.7 pts
Diabetes
9.1%
U.S. 12.1% -3.0 pts
Smoking
10.9%
U.S. 12.8% -1.9 pts
Uninsured (18-64)
6.4%
U.S. 11.1% -4.7 pts
Frequently asked questions
- What city is ZIP code 11742?
- ZIP code 11742 is in Holtsville, NY (Suffolk County).
- What county is ZIP code 11742 in?
- ZIP code 11742 is mostly in Suffolk County, New York.
- How many people live in ZIP code 11742?
- About 13,202 people live in the 11742 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.