Miss Porter's School

Miss Porter's School (MPS) is a private boarding and day college-preparatory school for girls founded in 1843 in Farmington, Connecticut. The school draws students from many of the 50 U.S. states, as well as from abroad.

The school's founder, Sarah Porter, insisted on a curriculum which included chemistry, physiology, botany, geology, and astronomy in addition to the more traditional subjects taught in girls' schools. In 1943, Miss Porter's was incorporated as a nonprofit institution and emphasized its purpose as a college preparatory school rather than a finishing school. Also that year, the school ended the tradition of hiring heads of school from the Porter family. The school continued to modernize throughout the 20th century. In July 2008, Katherine Windsor became the head of school. In 2017, the school joined the Mastery Transcript Consortium.

In the 2025–2026 academic year, boarding students comprised 65% of the student body. Students were from 28 countries; of U.S. students, 23 states were represented. The average class size was 12 students.