Heidlersburg is an unincorporated community and census-designated place that is located in Tyrone Township, Adams County, Pennsylvania, United States.

[4] Heidlersburg was formerly known as Starry Town.

Heidlersburg is located at the crossroads of Pennsylvania Route 234 and Old Harrisburg Road, the former U.S. Route 15.

Gettysburg is 9 miles (14 km) to the south, and Harrisburg is 28 miles (45 km) to the north.

It is in the Upper Adams School District.