Union County (Ohio)

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


The County is located just east of the geographic center of Ohio and has an area of ​​1132 square kilometers, of which one square kilometers of water surface. It is bordered clockwise to the following counties: Marion County, Delaware County, Franklin County, Madison County, Champaign County, Logan County and Hardin County.


Union County was from parts of Delaware, on January 10, 1820 Franklin. Logan and Madison County formed. It was named after its formation, it united the four parts of different counties in itself.

Demographic data

1900-1990 2000

According to the census in 2000 living in Union County 40 909 people in 14,346 households and 10,888 families. The population density was 36 people per square kilometer. The racial the population was made ​​up of 95.25 percent White, 2.81 percent African American, 0.18 percent Native American, 0.54 percent Asian, 0.02 percent of residents from the Pacific Islander and 0.22 percent from other races groups; 0.98 percent were descended from two or more races. 0.76 percent of the population were Hispanic or Latino of any race.

Of the 14,346 households out of which 38.5 percent have children under the age of 18 living with them. 64.4 percent were married couples living together, 8.0 percent were single mothers, 24.1 percent were non-families, 19.9 percent of all households and 7.3 percent had someone living alone at the age of 65 years or older. The average household size was 2.70 and the average family size was 3.11.

Based on the county the population was spread from 27.6 percent population under 18 years, 7.5 percent between 18 and 24 years, 34.0 percent between 25 and 44 years, 21.2 percent between 45 and 64 years and 9.6 percent were 65 years old or older. The average age was 34 years. For every 100 females there were 91.5 males. For every 100 females age 18 and over, there were 85.8 men statistically.

The median income for a household was $ 51,743, and the median income for a family was $ 58,384. Males have a median income of $ 40,910, women $ 27,405. The per capita income was $ 20,577. 3.6 percent of families and 4.6 percent of the population lived below the poverty line. Of these, 4.3 percent were children or adolescents under age 18 and 7.8 percent of those 65 years.