Heidlersburg is an unincorporated community and census-designated place in Tyrone Township, Adams County, Pennsylvania, United States. As of the 2020 census the population was 509. Heidlersburg is located at the crossroads of Pennsylvania Route 234 and Old Harrisburg Road, the former U.S. Route 15. Route 15 now bypasses the town to the east, with access from an exit at Route 234. Gettysburg is to the south, and Harrisburg is to the north. Heidlersburg used to be known as Starry Town. It contains a few garages. There is a volunteer fire company, Company 25. The two churches in Heidlersburg are Heidlersburg United Brethren in Christ Church and St. Mark's Lutheran Church. Demographics References External links Heidlersburg Fire Company Unincorporated communities in Pennsylvania Census-designated places in Adams County, Pennsylvania Census-designated places in Pennsylvania Unincorporated communities in Adams County, Pennsylvania