Sparta is a home rule-class city in Gallatin and Owen counties in the U.S. state of Kentucky. The population was 231 at the 2010 census. Spart…Sparta is a home rule-class city in Gallatin and Owen counties in the U.S. state of Kentucky. The population was 231 at the 2010 census. Sparta is home to Kentucky Speedway. Sparta is located in southwestern Gallatin County. The center of town is in Gallatin County on the north side of Eagle Creek; the city limits extend south across the creek into Owen County and north for 3 miles up Kentucky Route 35, past Interstate 71 at Exit 57 and encompassing all of the Kentucky Speedway north of the Interstate. Via KY 35 it is 8 miles north to Warsaw, the Gallatin County seat, and south 12 miles to Owenton, the Owen County seat. I-71 leads northeast 38 miles to Covington and southwest 58 miles to Louisville. Kentucky Route 467 crosses KY 35 in the center of Sparta, leading northeast 5.5 miles to Glencoe and southwest 3 miles to Sanders.