PlainZIP

Mastic Beach, NY · standard

ZIP Code 11951

Suffolk County, New York - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

13,680
787/sq mi
$110,862
Median income
$355,400
Median home value
24.0%
Bachelor's or higher

The verdict

Mastic Beach pairs an upper-quartile household income with above-median home values, in a low-density, homeowner-dominated area.

Top 13%
household income, US ZIPs
Top 26%
home value, US ZIPs
787
people per sq mi
81%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 11951 against every reporting US ZIP.

ZIP code 11951 is a mid-sized community (a standard USPS delivery area) in Mastic Beach, Suffolk County, New York, home to 13,680 residents across 17.4 square miles, a density of 787 people per square mile, in the New York time zone.

ZIP 11951 skews affluent, with a median household income of $110,862 (20% above the New York average), while per-capita income is $36,849. Poverty here runs at 21.8%, with unemployment measured at 4.6%. Housing costs here run $355,400 for a typical home value (6% below the state average), with rent averaging $2,422 a month; 80.6% of homes are owner-occupied.

Educational attainment sits below the national norm: 24.0% of adults hold a bachelor's degree or higher, the median age is 35.6, and the average commute is 37 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 11951, plus 6 more within Suffolk County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 11951

Top 5 sectors by establishment count in Mastic Beach, NY

Which industries have the most business establishments in ZIP 11951.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 11951, Mastic Beach, NY · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

13,680

Population

17.4

Area (sq mi)

787

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 11951?

35.6

Median Age

43.5%

Male

56.5%

Female

8.1%

Foreign-Born

White 71.6%
African American 13.3%
Asian 3.1%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 9.1%
Hispanic or Latino 15.8%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$110,862

Median Household Income

+20% vs state

$36,849

Per Capita Income

21.8%

Poverty Rate

4.6%

Unemployment Rate

37.0 min

Mean Commute Time

How ZIP 11951 ranks nationally

Mastic Beach, NY household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$110,862 Top 13% higher than 87% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 60.2%
Bachelor's Degree or Higher 24.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

5,407

Total Housing Units

5,050

Occupied Units

357

Vacant Units

3.15

Avg Household Size

Occupancy Type

Owner 80.6%
Renter 19.4%

$355,400

Median Home Value

-6% vs state

$2,422

Median Rent

1970

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+12.9%

YoY Change (2024)

357

HPI Index (2000 = 100)

+257%

Total Change Since 2000

Home values in ZIP 11951 have increased 12.9% over the past year (2024). Since 2000, this ZIP has seen +257% cumulative appreciation.

Year Annual Change HPI Index
2020 +12.3% 211
2021 +18.8% 251
2022 +16.9% 293
2023 +8.1% 317
2024 +12.9% 357

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 155 business establishments in ZIP 11951, employing approximately 568 people with a combined annual payroll of $20,508,000.

155

Businesses

568

Employees

$20.5M

Annual Payroll

9

Industry Sectors

Industry Establishments % of Total
Construction 58 37.4%
Other services (except public administration) 21 13.6%
Accommodation and food services 17 11.0%
Retail trade 16 10.3%
Health care and social assistance 13 8.4%
Administrative and support and waste management and remediation services 11 7.1%
Professional, scientific, and technical services 7 4.5%
Transportation and warehousing 5 3.2%
Arts, entertainment, and recreation 3 1.9%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 11951 vs 11955 →

ZIP 11951 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 11951 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 11951 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 11951 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
11955 Moriches, NY 3,285 3.2 mi
11950 Mastic, NY 16,268 3.2 mi
11934 Center Moriches, NY 7,263 3.2 mi
11967 Shirley, NY 26,583 3.2 mi
11719 Brookhaven, NY 3,589 4.4 mi
11940 East Moriches, NY 5,210 5.0 mi
11713 Bellport, NY 10,401 5.9 mi
11949 Manorville, NY 14,573 7.2 mi
11973 Upton, NY 9 7.7 mi
11980 Yaphank, NY 4,990 6.7 mi

More ZIP Codes in Suffolk County

11746 standard
Huntington Station, NY
Pop: 67,094
11706 standard
Bay Shore, NY
Pop: 62,543
11717 standard
Brentwood, NY
Pop: 60,745
11757 standard
Lindenhurst, NY
Pop: 45,700
11772 standard
Patchogue, NY
Pop: 44,837
11743 standard
Huntington, NY
Pop: 42,230

Related Areas

Suffolk County Mastic Beach, NY New York

Frequently Asked Questions

What county is ZIP code 11951 in? ▼
ZIP code 11951 (Mastic Beach) is located in Suffolk County, New York. Suffolk County contains multiple ZIP codes, see the full list at /counties/suffolk-ny.
What is the population of ZIP code 11951? ▼
ZIP code 11951 in Mastic Beach, NY has a population of 13,680 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 11951? ▼
The median household income in ZIP 11951 is $110,862, which is 45% above the national average of $76,288.
What is the average home value in ZIP 11951? ▼
The median home value in ZIP 11951 is $355,400, which is 28% above the national average of $278,155.
What is the demographic makeup of ZIP 11951? ▼
The largest racial group in ZIP 11951 is White at 71.6%. Hispanic or Latino residents make up 15.8% of the population.
How many businesses are in ZIP code 11951? ▼
ZIP code 11951 has 155 business establishments employing approximately 568 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 11951? ▼
The top industries by establishment count in ZIP 11951 are: Construction (58), Other services (except public administration) (21), Accommodation and food services (17). There are 9 industry sectors represented in total.
How have home values changed in ZIP code 11951? ▼
According to the FHFA House Price Index, home values in ZIP 11951 increased by 12.9% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 257%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 11951? ▼
In ZIP code 11951, 60.2% of residents aged 25+ have a high school diploma or higher, and 24.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 11951? ▼
The mean commute time for workers in ZIP code 11951 is 37.0 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 11951? ▼
In ZIP code 11951, approximately 80.6% of occupied housing units are owner-occupied and 19.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 11951? ▼
The poverty rate in ZIP code 11951 is 21.8% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.