Manheim is a borough in Lancaster County, Pennsylvania, United States. The population was 4,784 at the 2000 census. According to the United States Census Bureau, the borough has a total area of 1.4 square miles (3.6 km2), all of it land. Manheim was laid out by Henry William Stiegel in 1762 on a land tract in Rapho Township, Pennsylvania, though it wasn't incorporated until 1838. He set out to build an industrial empire and founded the Manheim Glassworks. After financial failure, he was forced to sell the development in 1775. After several failed attempts at resurrecting the Manheim Glassworks, it closed in 1780. The first railroad train came into Manheim on January 1, 1862, with the completion of the first division of the Columbia and Reading Railroad. In 1884, another forward step was the laying of water pipes and the beginning of service by the Manheim Electric Company, which set up a plant in Bomberger's Mill at the end of Mill Street.
Manheim is also home to the World's Largest Auto Auction. The Manheim Auto Auction is located on Route 72 with many daily visitors. It is open for business every Friday. The Manheim Community Farm Show is held the first week of every October at the Fairgrounds. Root's Market, home of the oldest single family-run country market in Lancaster County, Pennsylvania is located just south of Manheim.