New ranking: Top private schools in the D.C. area

• Most come with lots of prestige — Sidwell Friends is where the Obamas and Clintons sent their offspring, for instance — and hefty price tags.

How it works: Niche bases its rankings on a weighted mix of information like student and parent reviews, Department of Education data, test scores, and surveys.

Here are the top 10 D.C.-area private schools, according to Niche, along with their high school tuition costs:

• #10: The Potomac School ($49,200)
• #9: Landon School ($49,810)
• #8: St. Albans School ($55,468)
• #7: Episcopal High School ($69,700)
• #6: Holton-Arms School ($52,970)
• #5: National Cathedral School ($53,210)
• #4: The Madeira School ($54,200)
• #3: Georgetown Day School ($51,325)
• #2. Sidwell Friends School ($55,140)
• #1: BASIS Independent McLean ($36,800)