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ZIP code 11951: Mastic Beach, NY

11951 is a ZIP code in Mastic Beach, New York, mainly in Suffolk County, part of the New York-Newark-Jersey City, NY-NJ metro area. About 15,938 people live here.

Population
15,938
Median household income
$110,862
Typical home value
$355,400ACS median value
Median rent
$2,422gross, per month
Median age
35.6
Homeowners
80.6%of occupied homes
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Shaded: ZIP code 11951's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 11951 details

CityMastic Beach
StateNew York
CountySuffolk County
Metro areaNew York-Newark-Jersey City, NY-NJ
Time zoneEastern Time (UTC−5), observes daylight saving time
TypeStandard (delivery area)
Land area4.8 sq mi, plus 1.1 sq mi of water
Population density3,320 people per sq mi
Bachelor's degree or higher24% of adults 25+
Average commute37 minutes
Center coordinates40.76572, -72.83672

Median rent in 11951 by bedrooms

SizeMedian gross rent
1 bedroom$1,265/mo
2 bedrooms$2,440/mo
3 bedrooms$2,217/mo
4 bedrooms$3,240/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 11951

ZIP codeCityDistancePopulation
11950Mastic, NY2.8 mi17,599
11967Shirley, NY3.3 mi27,975
11934Center Moriches, NY3.3 mi9,418
11955Moriches, NY3.4 mi2,458
11719Brookhaven, NY3.8 mi3,235
11940East Moriches, NY5.1 mi5,819
11713Bellport, NY5.6 mi9,218
11980Yaphank, NY6.5 mi5,855

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 11951?

A typical home in ZIP code 11951 is worth about $355,400 (ACS median value). The median household here earns $110,862 a year. See what buying here would cost per month, with New York average taxes and insurance filled in.

Monthly payment for a $355,400 homeWhat can a $110,862 income afford?Rental property numbers

About ZIP code 11951

What city is ZIP code 11951?

ZIP code 11951 is in Mastic Beach, NY, in Suffolk County.

What county is ZIP code 11951 in?

11951 is mainly in Suffolk County, New York.

What is the population of ZIP code 11951?

About 15,938 people live in ZIP code 11951, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 11951 in?

11951 is in Eastern Time (UTC−5). It observes daylight saving time.