Hummelstown is a borough in Dauphin County, Pennsylvania, United States. The population was 4,538 as of the 2010 census. It is part of the Harrisburg–Carlisle Metropolitan Statistical Area.
Originally named "Fredrickstown," the town was established in 1762. The current mayor is David Roeting. Hummelstown is a Tree City and is located in District 15 of the Pennsylvania State Senate. It is centrally located between Harrisburg and Hershey, making it a common tourist drive-through. It has several businesses and shops designed to capitalize on the tourist travel that passes through town.
Hummelstown was founded as "Fredrickstown" in 1762 by two Germans, Frederick and Rosina Hummel. They purchased the land for 200 pounds sterling, then divided the area into building lots, which were sold to German settlers. During the mid 19th century, the Union Canal along Swatara Creek was an important factor in the development of the local economy, promoting trade and transportation.