Herculaneum is referred to as Herky by the locals. Herculaneum is built along the Mississippi River and borders Pevely and Festus. Herculaneum was the 1st county seat in 1819 and had the 1st Post office in Jefferson County. Herculaneum has the Dunklin R-5 Public School. Herculaneum has very easy access to Hwy 55 and the only Cracker Barrel in Jefferson County. Herculaneum Parks offer Movies in the Park during the Spring and Fall.
Herculaneum has a few newer subdivisions, Providence and The Prairies of Friedberg Estates and Lake of the Hills and Westchester Oaks.