- The Washington Waldorf School opened in 1969 and is currently located on a 6 -acre site in Bethesda, Maryland (near Washington, DC). The total enrollment is approximately 330. The school is a member of the Association of Waldorf Schools of North America, and is fully accredited by the Middle States Association of Colleges and Schools. The Grade School and High School are approved by the Maryland ...www.washingtonwaldorf.org