Town · New York

Town of Southold, New York

Southold (town), town, in Suffolk County, New York. Southold (town) had 24,260 residents on July 1, 2025 by the Census Bureau's estimate, up 2.3% since 2020; the 2020 Census counted 23,732 and the ACS 2020-2024 5-year estimates put it at 23,905 (±57). GEOID 3610369463.

Residents, July 2025 estimate

24,260

Census Bureau estimate (no margin published)
2020 Census count: 23,732 · ACS 2020-2024: 23,905 ±57

Median household income

$116,667

±$10,192 (90% margin)
New York: $85,974

Median home value

$859,300

±$30,175 (90% margin)
New York: $423,800

Median gross rent

$2,135

±$227 (90% margin)
New York: $1,621

Where is Southold (town) and what county is it in?

Southold (town) is a town in Suffolk County, New York. It covers 53.8 square miles of land, 442 residents per square mile in 2020.

11 places lie inside the Town of Southold, the largest Southold (CDP, 6,040 residents in 2020).

Southold (town) is in the New York-Newark-Jersey City, NY-NJ metropolitan statistical area, which takes in 22 counties (Census Bureau delineation, July 2023).

Southold (town) (marked with a dot) in Suffolk County, New York. Boundaries: Census Bureau 2024.

Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files

How many people live in Southold (town), and is it growing?

The Census Bureau estimates that 24,260 people lived in Southold (town) on July 1, 2025, up 2.3% since 2020, while New York shrank 1.0%. The 2020 Census counted 23,732 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 23,905 (±57).

  • July 2020→2021 +122 (23,859)
  • 2021→2022 +141 (24,000)
  • 2022→2023 +10 (24,010)
  • 2023→2024 +184 (24,194)
  • 2024→2025 +66 (24,260)
ACS 2020-2024 5-year estimates (counts) with the change from 2015-2019
MeasureSouthold (town)Suffolk CountyNew YorkChange since 2015-2019
Total population23,905±571,530,14619,852,366+1,769
Households9,796±467512,5657,722,646no clear change
Average household size2.40±0.112.932.49no clear change
Housing units15,564±421580,7728,585,241−1,114

Southold (town)'s population since 2000

From 20,599 in 2000 to 24,260 in 2025: up 17.8%. The 2000, 2010 and 2020 figures are census counts, each for Southold (town) as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

  • 2000 Census 20,599
  • 2005 (estimate) 21,612
  • 2010 Census 21,968
  • 2015 (estimate) 22,145
  • 2020 Census 23,732
  • 2025 (estimate) 24,260

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov

Who lives in Southold (town)?

The median resident of Southold (town) is 53.7 years old; 16.2% are under 18 and 30.0% are 65 or older. The largest group is non-Hispanic white residents at 80.1%, then Hispanic or Latino residents (of any race) at 14.6%. 14.5% of residents were born outside the United States.

Age, origin, education and moves, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureSouthold (town)Suffolk CountyNew YorkChange since 2015-2019
Median age53.7±3.341.739.8no clear change
Under 18 years16.2%±2.1 pts20.8%20.5%–
65 years and over30.0%±2.9 pts17.9%17.9%–
Male48.4%±2.1 pts49.6%48.8%–
Hispanic or Latino (any race)14.6%±3.6 pts22.8%19.8%+4.9 pts
White alone, not Hispanic80.1%±3.9 pts62.0%52.8%−6.6 pts
Black or African American alone, not Hispanic1.7%±0.6 pts6.9%13.4%no clear change
Asian alone, not Hispanic1.7%±0.9 pts4.4%9.0%–
American Indian and Alaska Native alone, not Hispanic0.0%±0.1 pts0.1%0.2%–
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±0.1 pts0.0%0.0%–
Two or more races, not Hispanic1.2%±0.7 pts3.0%3.8%–
Some other race alone, not Hispanic0.6%±0.5 pts0.7%1.0%–
Born outside the United States14.5%±2.8 pts16.8%22.8%no clear change
Speak a language other than English at home (age 5+)19.9%±3.5 pts24.8%30.9%–
Civilian veterans (age 18+)6.7%±1.8 pts4.0%3.7%–
With a disability11.2%±1.8 pts10.5%12.6%–
No health insurance coverage9.6%±3.2 pts4.7%5.1%+4.4 pts
High school graduate or higher (age 25+)93.3%±1.6 pts90.4%88.0%–
Bachelor's degree or higher (age 25+)50.0%±3.5 pts40.2%40.2%+8.9 pts
Graduate or professional degree (age 25+)21.1%±2.2 pts18.6%17.9%–
Lived in the same house a year earlier91.5%±2.6 pts92.8%90.1%–
Moved from another state in the past year1.2%±0.6 pts0.7%1.5%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Southold (town) earn?

Half of Southold (town)'s 9,796 households earn less than $116,667 a year (±$10,192), against $130,686 in Suffolk County and $85,974 in New York. In 2015-2019 the median was $99,802 in 2024 dollars, so it rose by $16,865 after inflation. 5.6% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates; 2015-2019 dollars adjusted with the R-CPI-U-RS
MeasureSouthold (town)Suffolk CountyNew YorkChange since 2015-2019
Median household income$116,667±$10,192$130,686$85,974+$16,865
Mean household income$174,197±$11,613$166,220$128,247–
Per capita income$71,607±$4,866$57,164$50,712no clear change
People below the poverty line5.6%±1.6 pts6.4%14.0%no clear change
Children under 18 below the poverty line4.2%±3.0 pts7.1%18.3%–
Households receiving SNAP3.2%±1.3 pts7.2%15.6%–
Households with a computer94.8%±1.8 pts96.5%94.7%–
Households with a broadband subscription91.9%±2.1 pts93.2%90.8%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Southold (town)?

Owners occupy 81.8% of Southold (town)'s occupied homes and renters 18.2%. The median owner-occupied home is valued at $859,300 by its owner (±$30,175). The median renter pays $2,135 a month including utilities, and 47.3% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates. Home values are owners' own estimates.
MeasureSouthold (town)Suffolk CountyNew YorkChange since 2015-2019
Median home value (owner-occupied)$859,300±$30,175$578,400$423,800+$130,975
Median gross rent$2,135±$227$2,255$1,621no clear change
Renters paying 35% or more of income on rent47.3%±11.9 pts49.0%43.1%no clear change
Median monthly owner costs, with a mortgage$3,498±$242$3,320$2,555–
Owner-occupied homes81.8%±2.8 pts82.2%54.3%no clear change
Renter-occupied homes18.2%±2.8 pts17.8%45.7%–
Housing units15,564±421580,7728,585,241−1,114
Homeowner vacancy rate2.7%±1.8 pts0.6%1.1%–
Rental vacancy rate8.7%±4.1 pts4.1%3.8%–
Single-family detached homes90.1%±1.6 pts79.7%41.2%–
Mobile homes0.0%±0.1 pts1.3%2.1%–
Built 2020 or later1.0%±0.5 pts0.7%0.8%–
Built 2010 to 20193.7%±1.2 pts3.7%5.3%–
Built 1939 or earlier23.6%±2.7 pts9.1%30.3%–
Households with no vehicle4.5%±1.5 pts5.1%29.2%–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How many new homes is Southold (town) building?

Builders took permits for 31 new housing units in Southold (town) in 2025 (31 in single-family houses), 1.3 per 1,000 residents against 1.9 across New York.

  • 2019 110 units
  • 2020 59 units
  • 2021 144 units
  • 2022 33 units
  • 2023 51 units
  • 2024 52 units
  • 2025 31 units

Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.

Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Southold (town) work and get to work?

59.1% of Southold (town)'s workers drive alone and 21.1% work from home. The average trip to work takes 26.6 minutes. The unemployment rate in 2020-2024 averaged 6.5%.

Work and commuting, ACS 2020-2024 5-year estimates (workers 16 and over)
MeasureSouthold (town)Suffolk CountyNew YorkChange since 2015-2019
In the labor force (age 16+)58.3%±2.9 pts65.5%62.7%–
Unemployment rate6.5%±2.7 pts4.7%6.4%no clear change
Drove alone to work59.1%±4.4 pts72.1%48.8%–
Carpooled7.7%±2.6 pts7.5%6.3%–
Public transportation4.8%±1.5 pts4.8%21.6%–
Walked5.5%±2.0 pts1.4%5.6%–
Worked from home21.1%±3.6 pts12.0%14.9%+13.6 pts
Mean travel time to work26.6 min±2.331.1 min32.6 minno clear change

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What census tracts are in Southold (town)?

9 census tracts lie mostly in Southold (town), and 1 more reaches into it (2020 census blocks). Their median household incomes run from $81,094 (Tract 1701.01) to $138,413 (Tract 1700.03).

Census tracts in Southold (town), ACS 2020-2024 5-year estimates
TractResidents, 2020-2024Median household incomeMedian home valueShare of tract in Southold (town)
Tract 1702.04Suffolk County4,528 $134,250 $883,900100%
Tract 1700.04Suffolk County3,869 $122,575 $760,200100%
Tract 1701.01Suffolk County2,574 $81,094 $961,200100%
Tract 1702.06Suffolk County2,524 $96,827 $911,200100%
Tract 1702.05Suffolk County2,463 $93,983 $839,900100%
Tract 1700.05Suffolk County2,259 $136,563 $913,800100%
Tract 1700.03Suffolk County2,097 $138,413 $822,300100%
Tract 1702.03Suffolk County1,948 $111,385 $716,600100%
Tract 1700.06Suffolk County1,643 $119,679 $993,100100%
Tract 9901Suffolk County0 not published not published18%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Southold (town)) · Census block assignment files

How does Southold (town) compare with other places in New York?

By the Census Bureau's July 2025 estimates, Southold (town) is the 475th-most populous of the 16,079 U.S. towns and townships that have one and the 64th-most populous of 924 in New York.

Southold (town) ranks 356th of 1,623 places in New York with 1,000 or more residents and a reliable estimate, by median household income.

Southold (town)'s rank in New York (1 = highest): by population among the state's towns and townships with a 2025 estimate; by the other measures among places of 1,000+ residents with a reliable estimate
MeasureRankOf
Population, July 2025 estimate64th924
Growth 2020-2025 (PEP)131st1,225
Residents per square mile889th1,657
Median household income356th1,623
Per capita income169th1,653
Median home value109th1,637
Median gross rent237th1,515
Poverty rate1,087th1,331
Bachelor's degree or higher340th1,640
Median age120th1,654
Owner-occupied share684th1,639
Work from home192nd1,350
Travel time to work762nd1,652

Southold (town)'s figures with every place in New York (CSV)

Every place in New York, sortable · Compare Southold (town) with other places

Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How reliable are the figures for Southold (town)?

6 of the 57 figures for Southold (town) on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.

The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Southold (town) are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.