No, not even close. Tuition at Sidwell Friends is approaching $40k/year [1]. The Lab School (specializes in learning disabled students) is over $40k/year [2].

DC spent about $20k/year per student in 2014. That's among the highest spending level in the nation [3]. I believe that figure is closer to $25k/year in 2016. About a third of the states spend less than half per student than DC [4].

[1] http://www.sidwell.edu/admissions/tuition-and-fees/index.asp... [2] https://www.labschool.org/page/admissions/tuition-and-fees [3] https://www.washingtonpost.com/news/local/wp/2015/06/02/the-... [4]http://www.governing.com/gov-data/education-data/state-educa...