US ZIP Code
11951

Mastic Beach, NY

Suffolk County  ·  New York

● Active
👥 15,830 Population ↑ 22% since 2019
💰 $108,877 Median HH Income
▲ 43% above avg ↑ 47% since 2019
🎂 38.4 Median Age ↓ 3% since 2019
🏠 $321,200 Median Home Value
▲ 15% above avg ↑ 44% since 2019
🎓 36.7% College Grads
≈ Avg
📊 6.7% Unemployment
▲ 38% above avg ↑ 32% since 2019
ZIP Code Details
ZIP Code11951
CityMastic Beach
StateNew York (NY)
CountySuffolk County
Area Code631/934
Elevation13 ft
Latitude40.765722
Longitude-72.836722
TimezoneNew York (DST)
FIPS36103
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 43.9% (6,948) Female 56.1% (8,882) ♀

Race & Ethnicity

White: 68%Hispanic: 17%Black: 6.5%Asian: 2.5%Other: 6%Race
White68.0%
Hispanic17.0%
Black6.5%
Asian2.5%
Other6.0%

Age Breakdown

Under 5
7%
5–17
23%
18–24
7%
25–44
25%
45–64
26%
65+
4%

Key Indicators

Median Age38.4 yrs ↓ 3% since 2019
Avg Household Size3.19
Below Poverty22.2% ▲ 122% above avg
College Grads36.7% ≈ Avg
Unemployment6.7% ▲ 38% above avg
No HS Diploma133 (1.5%)
HS Graduate3,457 (39.2%)
Some College1,011 (11.5%)
Associates975 (11.1%)
Bachelors1,305 (14.8%)
Graduate Degree1,931 (21.9%)

Education

No HS: 1.5%HS Grad: 39.2%Some College: 11.5%Associates: 11.1%Bachelors: 14.8%Graduate: 21.9%Edu
No HS1.5%
HS Grad39.2%
Some College11.5%
Associates11.1%
Bachelors14.8%
Graduate21.9%
Housing & Income

Housing Tenure

Owner: 81.2%Renter: 18.8%Tenure
Owner81.2%
Renter18.8%

Home Value Distribution

Under $50k
2%
$100k–150k
7%
$150k–200k
4%
$200k–300k
29%
$300k–500k
49%
Over $500k
9%

Financials

Median HH Income$108,877 ▲ 43% above avg ↑ 47% since 2019
Median Home Value$321,200 ▲ 15% above avg ↑ 44% since 2019
Home/Income Ratio3.0x (nat avg ~3.5x)
Median Rent$2,313/mo ↑ 29% since 2019
Total Units5,352
Vacant Units399
Avg HH Size3.19

Income Distribution

Under $25k
16%
$25k–50k
11%
$50k–75k
8%
$75k–100k
10%
$100k–150k
35%
$150k–200k
10%
Over $200k
12%
Employment & Commute

How People Get to Work

Drove Alone
88%
Public Transit
2%
Walked
1%
Work From Home
9%

Commute Time

Under 15 min
9%
15–30 min
21%
30–45 min
38%
Over 45 min
32%
Housing Stock

Year Built

Before 1940
7%
1940s–1950s
16%
1960s–1970s
18%
1980s–1990s
5%
2000+
54%

Summary

Total Units5,352
Vacant399
Owner Occupied81.2%
Renter Occupied18.8%
Avg HH Size3.19
Frequently Asked Questions
ZIP code 11951 is in Mastic Beach, NY, in Suffolk County.
ZIP code 11951 is located in New York (NY).
ZIP code 11951 is in Suffolk County, NY.
ZIP 11951 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 11951 is 15,830 people (ACS 2023).
The median household income in ZIP code 11951 is $108,877 (ACS 2023).
The median home value in ZIP 11951 is $321,200 (ACS 2023).
About ZIP Code 11951

ZIP code 11951 is located in Mastic Beach, New York, within Suffolk County. With a population of 15,830, this is a moderately populated ZIP code with a middle-aged community — the median age is 38.4 years. Economically, 11951 is a upper-middle-income ZIP code: the median household income of $108,877 is above the national average.

Real estate in ZIP code 11951 represents a mid-range housing market. The median home value of $321,200 is above the national average. Renters can expect to pay around $2,313 per month in median rent. Homeownership is strong here — 81.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 44% since 2019.

The population of 11951 is majority White (68.03%). Residents are moderately educated — 36.7% hold a bachelor's degree or higher, which is near the national average. Poverty affects a significant share of residents at 22.2%. Household income has grown by 47% since 2019.

The unemployment rate in 11951 stands at 6.7%, which is above the national average. As in most parts of the country, driving alone is the dominant commute mode at 81%.

Overall, ZIP code 11951 in Mastic Beach, NY is characterized as upper-middle-income, moderately educated, a middle-aged community, and predominantly owner-occupied. With 15,830 residents, a median household income of $108,877, and a median home value of $321,200, it offers a clear picture of life in this part of New York.