Penn Foster High School is a U.S. for-profit high school for distance learning. It was founded in 1890 as the International Correspondence Schools (ICS) Penn Foster High School is the largest high school in the United States with over 60,000 students currently enrolled across all 50 states. Programs at Penn Foster High School are self-paced. The school is regionally and nationally accredited. Penn Foster High School's headquarters is located in Scranton, Pennsylvania. It offers a high school diploma program and several high school concentration programs including an early college program. This is ideal for students looking to get a head start on their college education and vocational concentrations in carpentry, plumbing, electrical, health care, or information technology.