Seneca County OH Information


Seneca County Subdivisions

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


Total Population 56,104
Population in Households 53,557
Population in Familes 43,335
Population in Group Qrtrs 2,547
Population Density2 102
Diversity Index3 23


Median Household Income $49,823
Average Household Income $63,225
Per Capita Income $24,981


Total Housing Units 24,122 (100%)
Owner Occupied HU 15,436 (64.0%)
Renter Occupied HU 6,279 (26.0%)
Vacant Housing Units 2,407 ( 10.0%)
Median Home Value $112,873
Average Home Value $139,123


Total Households 21,715
Average Household Size 2.47
Family Households 14,582
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 -0.14% -0.18%
Households -0.03% -0.12%
Families -0.24% -0.26%
Median Household Income   2.12%
Per Capita Income   3.3%


Seneca County OH - Peer Comparisons by Rank and Percentile

The table below compares Seneca County to the other 88 counties and county equivalents in Ohio 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 # 47 48th
Population Density # 54 40th
Diversity Index # 30 67th
Median Household Income # 52 42nd
Per Capita Income # 50 44th

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