Town Of Southold NY Demographic Data and Boundary Map


Town Of Southold, NY

The Town Of Southold is a County Subdivision of Suffolk County. The subdivision has a T1 Census Class Code which indicates that the Town Of Southold is an active county subdivision that is not coextensive with an incorporated place.

Also See: Suffolk County Data | Cities in Suffolk County | County Subdivisions in Suffolk County

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  1. Town Of Southold 2018 Demographic Data
  2. Growth Rates for Town Of Southold (Historical & 5-Year Forecast)
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Town Of Southold Boundary Map


Town Of Southold Data & Demographics (As of July 1, 2018)


Total Population 23,356
Population in Households 23,029
Population in Familes 18,374
Population in Group Qrtrs 327
Population Density1 434
Diversity Index2 43


Total Households 9,604
Average Household Size 2.4
Family Households 6,263
Average Family Size 3


Total Housing Units 15,880 (100%)
Owner Occupied HU 7,650 (48.2%)
Renter Occupied HU 1,954 (12.3%)
Vacant Housing Units 6,276 (39.5%)
Median Home Value $625,717
Average Home Value $744,176


Median Household Income $87,199
Average Household Income $124,114
Per Capita Income $51,479
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 0.75% 0.56%
Households 0.67% 0.49%
Families 0.52% 0.4%
Median Household Income   2.85%
Per Capita Income   3.34%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

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New York Census Data Comparison Tool

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