How expensive can a US high school get?

I'm honestly curious, what's the ceiling on how much a US high school can cost? Specifically, which one tops the list?

While the majority of students in the United States attend public schools which are tuition-free, private schools can indeed have high tuition rates, especially those with a competitive and prestigious reputation.

There is a wide range in the costs of private high schools across the country, but the ceiling tends to be around $60,000 to $70,000 per year for some of the most expensive boarding schools, which include tuition and board (an example would be Lawrence Academy in Massachusetts).

The price can sometimes even go higher when you factor in additional costs such as textbooks, trips, personal spending money, and application fees. However, it's important to note that many private schools provide financial aid, including full scholarships, to students based on their family's financial situation.

Bear in mind that the cost does not always correlate directly with the quality of education. There are many excellent public and charter schools in the US that offer rigorous academic programs and a wide array of activities at no cost to the student. Plus, some states offer open enrollment, which means that students aren't limited to attending the public school in their zoning area.