ZIP code
11971
Southold, NY
11971 covers Southold in Suffolk County, with 6,507 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 11971. Methodology
ZIP code map of 11971

About ZIP code 11971
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 11971. Not ACS. Methodology
People in 11971
Race
- White5,105
- Black or African American70
- American Indian or Alaska Native28
- Asian83
- Other race445
- Two or more races374
Hispanic or Latino (any race): 765
Age
- Under 10407
- 10 to 19614
- 20 to 29560
- 30 to 39485
- 40 to 49596
- 50 to 59950
- 60 to 691,087
- 70 to 79856
- 80 and older550
Income and housing in 11971
Education
- High school graduate91.9%
- Bachelor's degree52.8%
- Graduate degree21.8%
Places covering 11971
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.
- Southold97.6%
- Greenport West1.2%
- Peconic1.2%
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 11971
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 6,033 | |
| 2006 | 5,836 | |
| 2007 | 5,944 | |
| 2008 | 5,759 | |
| 2009 | 5,705 | |
| 2010 | 5,616 | |
| 2011 | 5,851 | 5,635 |
| 2012 | 6,057 | 5,700 |
| 2013 | 6,317 | 5,580 |
| 2014 | 6,376 | 5,550 |
| 2015 | 6,348 | 5,440 |
| 2016 | 6,327 | 5,370 |
| 2017 | 6,553 | 5,190 |
| 2018 | 6,235 | 5,170 |
| 2019 | 6,026 | 5,200 |
| 2020 | 6,073 | 5,390 |
| 2021 | 6,769 | 5,290 |
| 2022 | 6,286 | 5,360 |
| 2023 | 6,507 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 11971
12 nearest ZIP centroids (any distance)
- 11958Peconic2.6 miPop 864 · Income $64,263
- 11944Greenport3.9 miPop 4,744 · Income $79,917
- 11935Cutchogue4.3 miPop 2,946 · Income $138,024
- 11956New Suffolk5.6 miPop 293 · Income $121,500
- 11965Shelter Island Heights6.7 miPop 421 · Income —
- 11964Shelter Island6.7 miPop 2,858 · Income $129,826
- 11963Sag Harbor7.2 miPop 8,114 · Income $126,513
- 11952Mattituck7.6 miPop 4,749 · Income $116,667
- 11939East Marion7.7 miPop 1,741 · Income $116,023
- 11948Laurel9.6 miPop 775 · Income $146,054
- 11976Water Mill10.3 miPop 2,447 · Income $158,000
- 11970South Jamesport11.3 miPop 468 · Income —
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 11971, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 11971 FAQ
- What city is ZIP code 11971 in?
- 11971 is in Southold, NY.
- What county is 11971 in?
- 11971 is in Suffolk County.
- What is the median household income in 11971?
- The median household income in 11971 is $124,097.
- Which ZIP codes are near 11971?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 11971.