Middletown is a city in Jefferson County. It is located twelve miles east of Louisville on U.S. 60, and was chartered as a city in 1797. When the government of Jefferson County merged with the city of Louisville, Kentucky in 2003, citizens of Middletown also became citizens of the new Louisville Metro, however, none of the incorporated places in Jefferson County were affected. Eastern High School is located in Middletown.
The name "Middletown" is believed to be derived from its halfway mark location between Louisville and Shelbyville. Although Middletown has grown rapidly it has maintained its charm and its past. The mixture of old and new makes Middletown quaint.