The Potomac School is a coeducational, college-preparatory independent day school located on a wooded 90-acre campus in McLean, Virginia, United States, three miles (5 km) from Washington, D.C. Average class size is 15-17 students. For the 2021-22 school year, Potomac enrolled 1,066 students in grades K-12. The school has four divisions – Lower School, Middle School (4-6), Intermediate School (7-8), and Upper School (9-12) – each providing a balanced educational experience.