Town of Southold, Suffolk County, New York
The Town of Southold is a town in Suffolk County, New York. About 23,905 people live there (2020–2024 estimate). It covers 53.8 sq mi (139 km²) of land and uses Eastern Time. It has its own local government.
- Population, 2020–2024 estimate
- 23,905 ± 57
- County
- Suffolk County
- Land area
- 53.8 sq mi (139 km²)
- Type
- TownIts own local government
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $116,667 ± $10,192
- Median home value
- $859,300 ± $30,175
- Water area
- 350 sq mi (907 km²)
- State
- New York
- Census code (GEOID)
- 3610369463
- Coordinates (central point)
- 41.138956, -72.318687
These coordinates mark a central point for the area, not a street address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.
Cities, towns and communities in the Town of Southold, largest first
- Southold (CDP)6,397 people
- Mattituck (CDP)4,606 people
- Cutchogue (CDP)2,835 people
- Greenport (village)2,574 people
- Greenport West (CDP)2,463 people
- Laurel (CDP)1,360 people
- East Marion (CDP)1,331 people
- Orient (CDP)1,121 people
- Peconic (CDP)848 people
- New Suffolk (CDP)298 people
- Fishers Island (CDP)72 people
These places’ central points lie inside the Town of Southold. A place can reach across the line, and its government, if it has one, can be separate from the town’s.
Bordering areas, nearest first
- Town of Shelter Island5.1 mi south
- Town of East Hampton12 mi east
- Town of Southampton19 mi southwest
- Town of Groton, Southeastern Connecticut Planning Region, Connecticut21 mi northeast
- Town of Riverhead24 mi southwest
- Town of Stonington, Southeastern Connecticut Planning Region, Connecticut26 mi northeast
- Town of Westerly, Washington County, Rhode Island30 mi northeast
These towns, townships, cities and boroughs share a boundary with the Town of Southold. Distances are straight lines between central points, not driving distances.
Other towns in Suffolk County, largest first
- Town of Brookhaven489,810 people
- Town of Islip339,106 people
- Town of Babylon218,262 people
- Town of Huntington204,059 people
- Town of Smithtown116,097 people
- Town of Southampton69,679 people
- Town of Riverhead35,980 people
- Town of East Hampton28,701 people
- Town of Shelter Island3,355 people
People counts are American Community Survey 2020–2024 5-year estimates. See Suffolk County for its cities, ZIP Code areas and county seat.
Sunrise and sunset in the Town of Southold
- Longest day
- 15 hours 9 minutes around June 21
- Shortest day
- 9 hours 12 minutes around December 21
- Earliest sunrise
- 5:16 AM around June 14
- Latest sunrise
- 7:26 AM the day before clocks go back in November
- Earliest sunset
- 4:20 PM around December 8
- Latest sunset
- 8:26 PM around June 27
Clocks go forward an hour on the second Sunday in March and back on the first Sunday in November, so sunrise and sunset jump an hour later in March and an hour earlier in November.
| Day | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Jan 15 | 7:12 AM | 4:45 PM | 9 h 33 min |
| Feb 15 | 6:44 AM | 5:23 PM | 10 h 39 min |
| Mar 15 | 7:01 AM | 6:55 PM | 11 h 54 min |
| Apr 15 | 6:10 AM | 7:29 PM | 13 h 19 min |
| May 15 | 5:31 AM | 8:00 PM | 14 h 29 min |
| Jun 15 | 5:16 AM | 8:23 PM | 15 h 7 min |
| Jul 15 | 5:29 AM | 8:20 PM | 14 h 51 min |
| Aug 15 | 5:58 AM | 7:48 PM | 13 h 50 min |
| Sep 15 | 6:29 AM | 6:58 PM | 12 h 29 min |
| Oct 15 | 7:00 AM | 6:08 PM | 11 h 8 min |
| Nov 15 | 6:36 AM | 4:30 PM | 9 h 54 min |
| Dec 15 | 7:07 AM | 4:21 PM | 9 h 14 min |
Approximate times for a flat horizon at the central point; the days move by a day or so from year to year. Hills and weather can change what you see.
Before using this answer on a form
A town line is not always the line on your mail: a mailing address can name another town or post office, and school districts, ZIP Codes and tax districts follow their own lines. For taxes, voting or permits, check the full address with Suffolk County or the local office.
Find the township or town where you are now or find your county.