Nassau County NY Information


Nassau County Subdivisions

Nassau County NY Data & Demographics (As of July 1, 2015)


Total Population 1,351,044
Population in Households 1,329,692
Population in Familes 1,157,247
Population in Group Qrtrs 21,352
Population Density1 4,745
Diversity Index2 63


Total Households 452,363
Average Household Size 2.94
Family Households 342,218
Average Family Size 3


Total Housing Units 473,180 (100%)
Owner Occupied HU 357,021 (75.5%)
Renter Occupied HU 95,342 (20.1%)
Vacant Housing Units 20,817 ( 4.4%)
Median Home Value $444,837
Average Home Value $517,157


Median Household Income $102,039
Average Household Income $133,014
Per Capita Income $44,732
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.16% 0.22%
Households 0.16% 0.22%
Families 0.09% 0.18%
Median Household Income   1.64%
Per Capita Income   2.57%
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.


Nassau County NY - Peer Comparisons by Rank and Percentile

The table below compares Nassau County to the other 62 counties and county equivalents in New York by rank and percentile using July 1, 2015 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 6 92nd
Population Density1 # 6 92nd
Diversity Index2 # 7 92nd
Median Household Income # 1 100th
Per Capita Income # 3 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE New York Census Data Comparison Tool.