Franklin is located in Simpson County. About 10,176 people live here (as of 2020). Between 2010 and 2020, the population grew from 8,408 to 10,176. The region is at 216 meters above sea level. The area covers about 36.3 square kilometers. There are about 454 streets in Franklin. The region was founded in 1820. The postal codes are 42134–42135. Franklin is city in and county seat of Simpson County, Kentucky, United States. Among other things, Franklin has restaurants, schools and dentists. More information at
www.franklinky.org.