Spencer County is a county located in the U.S. state of Kentucky. It was formed from land from nearby existing counties in 1824. The population was 17,061 in the 2010 Census. Its county seat is Taylorsville.[1] The county was named for Spier Spencer. Taylorsville Lake, located primarily within Spencer County, serves as a major economic resource for the area. Spencer was a dry county until 2009 when the county’s residents voted to overturn the ban on alcohol sales. From 2000 to 2005, Spencer County ranked 19th out of all U.S. counties in percent growth, with a 33% increase. It is part of the Louisville/Jefferson County, KY–IN Metropolitan Statistical Area.
Spencer County was formed in January 1824, by the 32nd Kentucky General Assembly. The land that now makes up Spencer County was taken from Bullitt County, Shelby County, and Nelson County. Spencer County became Kentucky’s 77th county. The county was named for Kentucky’s own Captain Spier Spencer, a hero who fought and died in the Battle of Tippecanoe.
Later that year, in December 1824, Taylorsville was made the county seat. In 1829, the city was incorporated.
During the American Civil War, the courthouse at Taylorsville was burned by Confederate guerrillas in January 1865, but the county’s records were saved.
Information taken from Wikipedia, Spencer County Kentucky