Seneca County NY Information


Seneca County Subdivisions

Seneca County NY Data & Demographics (As of July 1, 2018)


Total Population 35,165
Population in Households 32,356
Population in Familes 25,532
Population in Group Qrtrs 2,809
Population Density1 109
Diversity Index2 24


Median Household Income $51,866
Average Household Income $66,788
Per Capita Income $25,937


Total Housing Units 16,266 (100%)
Owner Occupied HU 9,258 (56.9%)
Renter Occupied HU 4,090 (25.1%)
Vacant Housing Units 2,918 (17.9%)
Median Home Value $111,667
Average Home Value $146,965


Total Households 13,348
Average Household Size 2.42
Family Households 8,613
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population -0.03% -0.11%
Households -0.04% -0.13%
Families -0.21% -0.23%
Median Household Income   2.69%
Per Capita Income   3.45%


Seneca County NY - Peer Comparisons by Rank and Percentile

The table below compares Seneca County to the other 62 counties and county equivalents in New York by rank and percentile using July 1, 2018 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 # 57 10th
Population Density # 35 45th
Diversity Index # 33 48th
Median Household Income # 38 40th
Per Capita Income # 52 18th

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