Shelbyville is a city in Bedford County, Tennessee, United States. It had a population of 20,335 residents at the 2010 census. Shelbyville, the county seat of Bedford County, was laid out in 1810 and incorporated in 1819. The town is a hub of the Tennessee Walking Horse industry and has been nicknamed "The Walking Horse Capital of the World".
Shelbyville is in Middle Tennessee on a Highland Rim limestone bluff upon the banks of Duck River, which flows around the southern and eastern sides of town.
According to the United States Census Bureau, the city has a total area of 18.6 square miles (48.2 km2), all land.
As of the census of 2000, there were 16,105 people, 6,066 households, and 4,155 families residing in the city. The population density was 1,041.3 people per square mile (402.0/km²). There were 6,550 housing units at an average density of 423.5 per square mile (163.5/km²). The racial makeup of the city was 77.14% White, 14.98% African American, 0.70% Asian, 0.35% Native American, 0.05% Pacific Islander, 5.02% from other races, and 1.78% from two or more races. Hispanics or Latinos of any race made up 14.55% of the population.
Of the 6,066 households, 31.7% had children under the age of 18 living with them, 46.0% were married couples living together, 16.6% had a female householder with no husband present, and 31.5% were non-families.