DeKalb County /

DeKalb County is a county located in the U.S. state of Tennessee. As of 2000, the population was 18,723. According to the U.S. Census Bureau, the county has a total area of 329 square miles (852.1 km), of which 305 square miles (789.9 km) is land and 24 square miles (62.2 km) (7.42%) is water. As of the census of 2000, there were 17,423 people, 6,984 households, and 4,986 families residing in the county. The population density was 57 people per square mile (22/km²). There were 8,409 housing units at an average density of 28 per square mile (11/km²). The racial makeup of the county was 95.58% White, 1.43% Black or African American, 0.28% Native American, 0.14% Asian, 0.02% Pacific Islander, 1.62% from other races, and 0.94% from two or more races. 3.63% of the population were Hispanic or Latino of any race. There were 6,984 households out of which 30.10% had children under the age of 18 living with them, 56.10% were married couples living together, 11.10% had a female householder with no husband present, and 28.60% were non-families. 25.50% of all households were made up of individuals and 10.70% had someone living alone who was 65 years of age or older. The average household size