2000 census
As of the 2000 United States Census, [16] there were 73,345 people, 27,136 households, and 19,185 families in the county. The population density was 106 people per square mile (41 people/km2). There were 29,461 housing units at an average density of 42.7 units per square mile (16.5/km2). The racial makeup of the county was 91.74% White, 6.20% Black or African American, 0.31% Native American, 0.35% Asian, 0.02% Pacific Islander, 0.19% from other races, and 1.20% from two or more races. 0.58% of the population were Hispanic or Latino of any race.
There were 27,136 households, out of which 32.70% had children under the age of 18 living with them, 55.20% were married couples living together, 11.10% had a female householder with no husband present, and 29.30% were non-families. 24.90% of all households were made up of individuals, and 10.30% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 2.97.
The county population contained 24.00% under the age of 18, 8.60% from 18 to 24, 31.60% from 25 to 44, 23.60% from 45 to 64, and 12.20% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 108.30 males. For every 100 females age 18 and over, there were 109.00 males.
The median income for a household in the county was $37,117, and the median income for a family was $43,241. Males had a median income of $35,892 versus $23,399 for females. The per capita income for the county was $17,569. About 9.10% of families and 12.00% of the population were below the poverty line, including 15.10% of those under age 18 and 10.20% of those age 65 or over.
2010 census
As of the 2010 United States Census, there were 78,064 people, 28,919 households, and 19,782 families in the county. [17] The population density was 113 people per square mile (44 people/km2). There were 32,148 housing units at an average density of 46.6 units per square mile (18.0/km2). [18] The racial makeup of the county was 90.7% white, 6.2% black or African American, 0.4% Asian, 0.3% American Indian, 0.3% from other races, and 2.1% from two or more races. Those of Hispanic or Latino origin made up 1.0% of the population. [18] In terms of ancestry, 27.0% were German, 15.2% were Irish, 12.5% were American, and 10.5% were English. [19]
Of the 28,919 households, 32.8% had children under the age of 18 living with them, 50.2% were married couples living together, 12.6% had a female householder with no husband present, 31.6% were non-families, and 26.2% of all households were made up of individuals. The average household size was 2.48 and the average family size was 2.95. The median age was 39.8 years. [18]
The median income for a household in the county was $42,626 and the median income for a family was $50,081. Males had a median income of $42,721 versus $32,374 for females. The per capita income for the county was $20,595. About 13.1% of families and 17.3% of the population were below the poverty line, including 24.7% of those under age 18 and 8.2% of those age 65 or over. [20]
United States
Ohio 
