PlainZIP

Centerport, NY · standard

ZIP Code 11721

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

6,292
976/sq mi
$197,179
Median income
$740,300
Median home value
71.4%
Bachelor's or higher

The verdict

Centerport pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 1%
household income, US ZIPs
Top 6%
home value, US ZIPs
976
people per sq mi
97%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 11721 against every reporting US ZIP.

ZIP code 11721 is a mid-sized community (a standard USPS delivery area) in Centerport, Suffolk County, New York, home to 6,292 residents across 6.4 square miles, a density of 976 people per square mile, in the New York time zone.

ZIP 11721 skews affluent, with a median household income of $197,179 (113% above the New York average), while per-capita income is $109,501. Local economic indicators show a 4.1% poverty rate alongside 6.5% unemployment. The typical home here is valued at $740,300 (96% above the state average); renters pay a median of $3,501 monthly, and 96.6% of units are owner-occupied.

This is a highly-educated ZIP: 71.4% of adults hold a bachelor's degree or higher, the median age is 50.2, and the average commute is 35 minutes. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Suffolk County, letting you compare 11721 to its immediate surroundings rather than a national baseline 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 11721

Top 5 sectors by establishment count in Centerport, NY

Which industries have the most business establishments in ZIP 11721.

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 11721, Centerport, 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

6,292

Population

6.4

Area (sq mi)

976

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 11721?

50.2

Median Age

50.3%

Male

49.7%

Female

5.6%

Foreign-Born

White 83.6%
African American 1.8%
Asian 1.2%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.9%
Hispanic or Latino 10.1%

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?

$197,179

Median Household Income

+113% vs state

$109,501

Per Capita Income

4.1%

Poverty Rate

6.5%

Unemployment Rate

35.3 min

Mean Commute Time

How ZIP 11721 ranks nationally

Centerport, NY household income vs. every US ZIP code

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

$197,179 Top 1% higher than 99% 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%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). Below this entry. $180,000–$200,000: 186 US ZIPs (1%). This entry sits in this band. $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 80.0%
Bachelor's Degree or Higher 71.4%

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

What does housing look like?

2,484

Total Housing Units

2,417

Occupied Units

67

Vacant Units

2.66

Avg Household Size

Occupancy Type

Owner 96.6%
Renter 3.4%

$740,300

Median Home Value

+96% vs state

$3,501

Median Rent

1957

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

+12.1%

YoY Change (2024)

265

HPI Index (2000 = 100)

+165%

Total Change Since 2000

Home values in ZIP 11721 have increased 12.1% over the past year (2024). Since 2000, this ZIP has seen +165% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.7% 191
2021 +7.2% 205
2022 +18.6% 243
2023 -2.8% 236
2024 +12.1% 265

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 175 business establishments in ZIP 11721, employing approximately 735 people with a combined annual payroll of $41,742,000.

175

Businesses

735

Employees

$41.7M

Annual Payroll

12

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 46 26.3%
Construction 27 15.4%
Other services (except public administration) 16 9.1%
Health care and social assistance 14 8.0%
Accommodation and food services 12 6.9%
Finance and insurance 10 5.7%
Real estate and rental and leasing 10 5.7%
Arts, entertainment, and recreation 10 5.7%
Administrative and support and waste management and remediation services 9 5.1%
Wholesale trade 8 4.6%
Manufacturing 5 2.9%
Information 3 1.7%

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 11721 vs 11740 →

ZIP 11721 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 11721 ranks #0 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 11721 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 11721 ranks #2 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
11740 Greenlawn, NY 9,454 2.0 mi
11768 Northport, NY 21,902 2.6 mi
11743 Huntington, NY 42,230 3.1 mi
11731 East Northport, NY 30,184 3.5 mi
11746 Huntington Station, NY 67,094 5.5 mi
11724 Cold Spring Harbor, NY 3,220 4.8 mi
11754 Kings Park, NY 18,958 6.4 mi
11725 Commack, NY 29,150 5.9 mi
11798 Wyandanch, NY 15,347 9.8 mi
11747 Melville, NY 19,803 7.8 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 Centerport, NY New York

Frequently Asked Questions

What county is ZIP code 11721 in? ▼
ZIP code 11721 (Centerport) 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 11721? ▼
ZIP code 11721 in Centerport, NY has a population of 6,292 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 11721? ▼
The median household income in ZIP 11721 is $197,179, which is 158% above the national average of $76,288.
What is the average home value in ZIP 11721? ▼
The median home value in ZIP 11721 is $740,300, which is 166% above the national average of $278,155.
What is the demographic makeup of ZIP 11721? ▼
The largest racial group in ZIP 11721 is White at 83.6%. Hispanic or Latino residents make up 10.1% of the population.
How many businesses are in ZIP code 11721? ▼
ZIP code 11721 has 175 business establishments employing approximately 735 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 11721? ▼
The top industries by establishment count in ZIP 11721 are: Professional, scientific, and technical services (46), Construction (27), Other services (except public administration) (16). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 11721? ▼
According to the FHFA House Price Index, home values in ZIP 11721 increased by 12.1% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 165%. 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 11721? ▼
In ZIP code 11721, 80.0% of residents aged 25+ have a high school diploma or higher, and 71.4% 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 11721? ▼
The mean commute time for workers in ZIP code 11721 is 35.3 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 11721? ▼
In ZIP code 11721, approximately 96.6% of occupied housing units are owner-occupied and 3.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 11721? ▼
The poverty rate in ZIP code 11721 is 4.1% 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.