Top 10 most Expensive Private High Schools in America: tuition fess will shock youBy DreBoam / July 2, 2018 4. Lawrence Academy, Groton, Mass. Day student tuition: $38,770 Boarding student tuition: $50,375 Enrollment: 399 Endowment: $20 million Perks: Campus is home to a Sony Language Laboratory and six science labs. Prev7 of 10NextUse your ← → (arrow) keys to browse