ZIP code
11787
Smithtown, NY
11787 covers Smithtown in Suffolk County, with 34,656 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 11787. Methodology
ZIP code map of 11787
About ZIP code 11787
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 11787. Not ACS. Methodology
People in 11787
Race
- White29,742
- Black or African American500
- American Indian or Alaska Native43
- Asian1,456
- Other race827
- Two or more races2,793
Hispanic or Latino (any race): 3,264
Age
- Under 103,249
- 10 to 194,802
- 20 to 294,054
- 30 to 393,336
- 40 to 494,176
- 50 to 596,154
- 60 to 694,366
- 70 to 793,018
- 80 and older2,206
Income and housing in 11787
Education
- High school graduate95.5%
- Bachelor's degree50.5%
- Graduate degree22.7%
Places covering 11787
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.
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
0.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 11787
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 35,494 | |
| 2006 | 33,749 | |
| 2007 | 35,057 | |
| 2008 | 34,177 | |
| 2009 | 34,217 | |
| 2010 | 34,254 | |
| 2011 | 36,425 | 34,275 |
| 2012 | 35,969 | 34,020 |
| 2013 | 36,606 | 34,060 |
| 2014 | 36,357 | 33,540 |
| 2015 | 35,813 | 33,510 |
| 2016 | 36,040 | 33,830 |
| 2017 | 35,436 | 33,870 |
| 2018 | 34,099 | 33,680 |
| 2019 | 34,376 | 33,630 |
| 2020 | 33,837 | 33,340 |
| 2021 | 34,815 | 33,490 |
| 2022 | 34,408 | 33,450 |
| 2023 | 34,656 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 11787
12 nearest ZIP centroids (any distance)
- 11788Hauppauge2.4 miPop 17,092 · Income $148,946
- 11754Kings Park3.0 miPop 17,660 · Income $123,406
- 11767Nesconset3.4 miPop 14,495 · Income $148,762
- 11725Commack3.7 miPop 29,050 · Income $168,324
- 11749Islandia3.8 miPop 3,581 · Income $112,435
- 11780Saint James4.5 miPop 15,586 · Income $141,576
- 11722Central Islip4.9 miPop 38,443 · Income $110,365
- 11755Lake Grove4.9 miPop 11,953 · Income $120,306
- 11717Brentwood5.2 miPop 64,969 · Income —
- 11731East Northport5.6 miPop 29,891 · Income $158,819
- 11779Ronkonkoma5.8 miPop 38,273 · Income $117,684
- 11790Stony Brook5.8 miPop 19,934 · Income $157,695
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 11787, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 11787 FAQ
- What city is ZIP code 11787 in?
- 11787 is in Smithtown, NY.
- What county is 11787 in?
- 11787 is in Suffolk County.
- What is the median household income in 11787?
- The median household income in 11787 is $141,505.
- Which ZIP codes are near 11787?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 11787.