The South Eastern School District is a midsized, rural, public school district in southern York County, Pennsylvania.

The district encompasses approximately 105 square miles (270 km2).

According to data from the 2000 federal census, it serves a resident population of 17,884 people.

By 2010, South Eastern School District's population increased to 19,567 people.

[4] The district's students have access to a wide variety of clubs, activities and an extensive sports program.