The Milton Area School District is a small, rural public school district headquartered in Milton, Pennsylvania. The district is located in Northumberland and Union counties. Milton Area School District encompasses approximately 85 square miles (220 km2). According to 2000 federal census data, it served a resident population of 15,510. By 2010, the Milton Area School District's population increased to 16,561 people. The educational attainment levels for the School District population (25 years old and over) were 85.5% high school graduates and 13% college graduates. The district is one of the 500 public school districts of Pennsylvania.