The Upper Dauphin Area High School is a small, rural, public high school. It is the sole high school operated by Upper Dauphin Area School District which is located in Dauphin County, Pennsylvania. The high school serves the boroughs of Lykens, Elizabethville, Gratz, Berrysburg, and Pillow, as well as Jefferson Township, Washington Township, Mifflin Township, and Lykens Township. The Upper Dauphin Area School District encompasses approximately 91 square miles (240 km2).