ZIP code
11720
Centereach, NY
11720 covers Centereach in Suffolk County, with 28,669 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 11720. Methodology
ZIP code map of 11720

About ZIP code 11720
Acceptable cities: S Setauket, South Setauket
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 11720. Not ACS. Methodology
People in 11720
Race
- White20,475
- Black or African American957
- American Indian or Alaska Native91
- Asian2,511
- Native Hawaiian and Pacific Islander7
- Other race1,976
- Two or more races2,606
Hispanic or Latino (any race): 4,746
Age
- Under 102,896
- 10 to 193,632
- 20 to 293,981
- 30 to 393,591
- 40 to 493,580
- 50 to 594,491
- 60 to 693,410
- 70 to 791,885
- 80 and older1,157
Income and housing in 11720
Education
- High school graduate92.5%
- Bachelor's degree35.3%
- Graduate degree17.9%
Places covering 11720
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Centereach99.0%
- Selden0.9%
- Lake Ronkonkoma0.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Suffolk County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Population history for 11720
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 29,032 | |
| 2006 | 27,596 | |
| 2007 | 28,605 | |
| 2008 | 27,809 | |
| 2009 | 27,890 | |
| 2010 | 28,144 | |
| 2011 | 30,407 | 27,635 |
| 2012 | 29,603 | 27,570 |
| 2013 | 29,931 | 27,650 |
| 2014 | 29,374 | 27,580 |
| 2015 | 29,167 | 27,560 |
| 2016 | 28,823 | 27,000 |
| 2017 | 28,966 | 27,340 |
| 2018 | 28,556 | 27,330 |
| 2019 | 28,454 | 27,190 |
| 2020 | 28,773 | 27,430 |
| 2021 | 29,213 | 27,080 |
| 2022 | 29,193 | 27,240 |
| 2023 | 28,669 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 11720
12 nearest ZIP centroids (any distance)
- 11755Lake Grove2.0 miPop 11,953 · Income $120,306
- 11784Selden2.1 miPop 25,986 · Income $105,268
- 11738Farmingville3.2 miPop 20,246 · Income $139,008
- 11790Stony Brook3.5 miPop 19,934 · Income $157,695
- 11776Port Jefferson Station3.5 miPop 23,629 · Income $119,480
- 11767Nesconset3.7 miPop 14,495 · Income $148,762
- 11794Stony Brook4.1 miPop 1,519 · Income —
- 11727Coram4.1 miPop 29,393 · Income $101,515
- 11779Ronkonkoma4.3 miPop 38,273 · Income $117,684
- 11742Holtsville4.6 miPop 13,194 · Income $126,563
- 11733East Setauket5.1 miPop 17,403 · Income $174,931
- 11741Holbrook5.3 miPop 26,356 · Income $138,417
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 11720, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 11720 FAQ
- What city is ZIP code 11720 in?
- 11720 is in Centereach, NY.
- What county is 11720 in?
- 11720 is in Suffolk County.
- What is the median household income in 11720?
- The median household income in 11720 is $128,015.
- Which ZIP codes are near 11720?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 11720.