ZIP code
11784
Selden, NY
11784 covers Selden in Suffolk County, with 25,986 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 11784. Methodology
ZIP code map of 11784

About ZIP code 11784
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 11784. Not ACS. Methodology
People in 11784
Race
- White17,335
- Black or African American1,171
- American Indian or Alaska Native81
- Asian1,781
- Native Hawaiian and Pacific Islander4
- Other race1,919
- Two or more races2,503
Hispanic or Latino (any race): 4,714
Age
- Under 102,670
- 10 to 193,184
- 20 to 293,399
- 30 to 393,197
- 40 to 493,069
- 50 to 593,997
- 60 to 692,817
- 70 to 791,682
- 80 and older779
Income and housing in 11784
Education
- High school graduate93.6%
- Bachelor's degree29.6%
- Graduate degree11.3%
Places covering 11784
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.
- Selden80.3%
- Coram12.0%
- Farmingville6.6%
- Centereach1.1%
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 11784
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 23,909 | |
| 2006 | 22,807 | |
| 2007 | 23,854 | |
| 2008 | 23,070 | |
| 2009 | 23,311 | |
| 2010 | 23,417 | |
| 2011 | 25,194 | 23,170 |
| 2012 | 25,611 | 23,250 |
| 2013 | 26,158 | 23,180 |
| 2014 | 26,312 | 23,360 |
| 2015 | 26,455 | 23,450 |
| 2016 | 26,230 | 23,130 |
| 2017 | 25,739 | 23,070 |
| 2018 | 24,992 | 23,350 |
| 2019 | 25,337 | 23,490 |
| 2020 | 25,014 | 23,580 |
| 2021 | 25,251 | 23,540 |
| 2022 | 25,425 | 23,720 |
| 2023 | 25,986 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 11784
12 nearest ZIP centroids (any distance)
- 11720Centereach2.1 miPop 28,669 · Income $128,015
- 11738Farmingville2.1 miPop 20,246 · Income $139,008
- 11727Coram2.2 miPop 29,393 · Income $101,515
- 11776Port Jefferson Station3.1 miPop 23,629 · Income $119,480
- 11755Lake Grove4.0 miPop 11,953 · Income $120,306
- 11742Holtsville4.0 miPop 13,194 · Income $126,563
- 11763Medford4.3 miPop 30,235 · Income $119,286
- 11766Mount Sinai5.0 miPop 11,481 · Income $157,564
- 11953Middle Island5.0 miPop 13,383 · Income $92,049
- 11790Stony Brook5.2 miPop 19,934 · Income $157,695
- 11741Holbrook5.3 miPop 26,356 · Income $138,417
- 11779Ronkonkoma5.4 miPop 38,273 · Income $117,684
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 11784, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 11784 FAQ
- What city is ZIP code 11784 in?
- 11784 is in Selden, NY.
- What county is 11784 in?
- 11784 is in Suffolk County.
- What is the median household income in 11784?
- The median household income in 11784 is $105,268.
- Which ZIP codes are near 11784?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 11784.