ZIP Code 11721
standardSource:
Centerport · Suffolk County · New York
- Population
- 6,292
- Median income
- $197,179
- Median home value
- $740,300
- Bachelor's or higher
- 71.4%
- Land area
- 6.4 sq mi
976/sq mi
▲ 158% vs US
higher than 99% of US ZIPs
▲ 166% vs US
higher than 94% of US ZIPs
Median age 50.2
New York
ZIP code 11721 in Centerport, New York has a population of 6,292. The median household income is $197,179, which is 158% above the national average. Median home value is $740,300, 166% above the US average. 71.4% of residents hold a bachelor's degree or higher.
ZIP code 11721 is classified by USPS as a standard delivery area and covers roughly 6.4 square miles in Centerport, Suffolk County, New York. The area is home to 6,292 residents, producing a population density of 976 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 11721 against New York and the nation.
On the economic side, the median household income for ZIP 11721 sits at $197,179 (113% above the New York average), while per-capita income is $109,501. The poverty rate stands at 4.1% and the unemployment rate at 6.5%. On housing, the median home value is $740,300 (96% above the state average) with median rent at $3,501 per month, and 96.6% of occupied units are owner-occupied, a direct signal of whether 11721 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 71.4% of adults hold a bachelor's degree or higher, the median age is 50.2, and the average commute is 35 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Suffolk County, so you can benchmark 11721 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 11721
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 11721.
- Professional, scientific, and technical services
Professional, scientific, and technical services
46 establishments
- Construction
Construction
27 establishments
- Other services (except public administration) 16
Other services (except public administration)
16 establishments
- Health care and social assistance 14
Health care and social assistance
14 establishments
- Accommodation and food services 12
Accommodation and food services
12 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
Who lives in ZIP 11721?
50.2
Median Age
50.3%
Male
49.7%
Female
5.6%
Foreign-Born
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
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
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
$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 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
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Frequently Asked Questions
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What is the population of ZIP code 11721? ▼
What is the median household income in ZIP 11721? ▼
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How many businesses are in ZIP code 11721? ▼
What are the main industries in ZIP code 11721? ▼
How have home values changed in ZIP code 11721? ▼
What is the education level in ZIP code 11721? ▼
What is the average commute time in ZIP 11721? ▼
What percentage of residents own vs. rent in ZIP 11721? ▼
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ZIP Code Research Guides
Official Data Resources for Centerport, NY
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.