Frankfort is located in Will County. About 20,296 people live here (as of 2020). Between 2010 and 2020, the population grew from 17,782 to 20,296. The area covers about 38.8 square kilometers. There are about 968 streets in Frankfort. The region was founded in 1879. The postal codes are 60423. The dialing code is 815. Frankfort is village on border of Cook and Will Counties in Illinois, United States of America. Among other things, Frankfort has restaurants, attractions, schools, banks, hairdressers and pharmacies. More information at
www.villageoffrankfort.com.