Southold is a town in Suffolk County, New York, home to about 23,905 people across 54 square miles. Its ZIP codes are 06390, 11935, 11939, 11944, 11948, 11952, 11956, 11957, 11958 and 11971.
Homes sold for a median of $588 per square foot across 9 ZIP codes in the three months ending August 2026, and 1 of 9 were seller’s markets.
All in Southold
All in Southold
All in Southold
All in Southold
Mostly Southold; also Riverhead
All in Southold
All in Southold
Each card is that ZIP code’s whole market, including any part outside Southold. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Southold’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Bradley International Airport (BDL)62 miles away |
|---|---|
| Closer regional airport | Tweed New Haven Airport (HVN)28 miles away |
| Nearest city of 250,000+ | New York, NY85 miles away |
Straight-line distances from the center of Southold; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Southold had 23,732 residents in the 2020 census, up 15% since 2000.
It’s the 102nd largest of 1,007 towns in New York by population.
Suffolk County grew from 77,582 residents in 1900 to 1,525,920 in 2020.
Suffolk County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 23°F. About 45.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Mattituck, NY weather station (7 miles away).
592,580 jobs at 50,748 businesses in Suffolk County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
214 doctors and other health care providers list an office in Southold’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 23 |
|---|---|
| Specialist doctors | 22 |
| Dentists | 16 |
| Nurse practitioners and physician assistants | 32 |
| Mental health providers | 63 |
| Physical and occupational therapists | 49 |
| Optometrists | 1 |
| Chiropractors | 8 |
| Pharmacies | 10 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (17 nearby)
Grocery stores (3 nearby)
Pharmacies (1 nearby)
Libraries (3 nearby)
Museums (5 nearby)
Counts are within about 5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1640.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Fishers Island Union Free School District, Greenport Union Free School District, Oysterponds Union Free School District and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Fishers Island SchoolFishers Island | Pre-K–12 | 56 | Public | 23.7 mi |
| Greenport Elementary SchoolGreenport | Pre-K–6 | 327 | Public | 3.3 mi |
| Oysterponds Elementary SchoolOrient | Pre-K–6 | 86 | Public | 7.9 mi |
| Mattituck-Cutchogue Elementary SchoolCutchogue | K–6 | 457 | Public | 4.2 mi |
| Southold Elementary SchoolSouthold | K–6 | 304 | Public | 1.1 mi |
| Greenport High SchoolGreenport | 7–12 | 358 | Public | 3.3 mi |
| Mattituck Junior-Senior High SchoolMattituck | 7–12 | 524 | Public | 7.8 mi |
| Southold Junior-Senior High SchoolSouthold | 7–12 | 333 | Public | 1.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Peconic Community SchoolCutchogue | Pre-K–8 | 71 | Nonsectarian | 5.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Riverhead.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.