Seneca County (Ohio)

Seneca County is a county located in the state of Ohio of the United States. The administrative headquarters ( County Seat) is Tiffin.


The County is located in northern Ohio, is in the northeast about 30 km from Lake Erie, the southernmost of the five Great Lakes, away and has an area of ​​1431 square kilometers, of which five square miles are water. It is bordered clockwise to the following counties: Sandusky County, Huron County, Crawford County, Wyandot County, Hancock County and Wood County.


Seneca County was formed on February 12, 1820 from parts of Huron County. It was named after the North American Indian people of the Seneca, whose reserve was here.

Demographic data

1900-1990 2000

According to the census in 2000 lived in Seneca County 58 683 people in 22 292 households, and 15,738 families. The population density was 41 people per square kilometer. The racial the population was made ​​up of 95.04 percent White, 1.76 percent African American, 0.18 percent Native American, 0.38 percent Asian, 0.01 percent of residents from the Pacific Islander and 1.39 percent from other races groups; 1.25 percent were descended from two or more races. 3.36 percent of the population were Hispanic or Latino of any race.

Of the 22 292 households out of which 33.4 percent have children under the age of 18 living with them. 56.1 percent were married couples living together, 10.2 percent were single mothers, 29.4 percent were non-families, 24.7 percent of all households and 10.6 percent lived in people aged 65 years or older. The average household size was 2.56 and the average family size was 3.04.

Based on the county the population was spread from 26.0 percent population under 18 years, 10.4 percent between 18 and 24 years, 27.2 percent between 25 and 44 years, 22.4 percent between 45 and 64 years and 14.1 percent were 65 years old or older. The average age was 36 years. For every 100 females there were 98.0 males. For every 100 females age 18 and over, there were 95.7 men statistically.

The median income for a household was $ 38,037, and the median income for a family was $ 44,600. Males have a median income of $ 32,387, women $ 22,383. The per capita income was $ 17,027. 6.1 percent of families and 9.0 percent of the population lived below the poverty line. Of these, 9.6 percent were children or adolescents under age 18 and 7.2 percent of those 65 years.