Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. As of the census of 2000, there were 17,693 people, 7,164 households, and 5,079 families residing in the county. The population density was 49 people per square mile. There were 8,313 housing units at an average density of 23 per square mile. The racial makeup of the county was 98.92% White, 0.08% Black or African American, 0.10% Native American, 0.32% Asian, 0.02% Pacific Islander, 0.03% from other races, and 0.53% from two or more races. 0.42% of the population were Hispanic or Latino of any race. There were 7,164 households out of which 30.20% had children under the age of 18 living with them, 57.70% were married couples living together, 9.30% had a female householder with no husband present, and 29.10% were non-families. 25.70% of all households were made up of individuals and 12.80% had someone living alone who was 65 years of age or older.