The address of the school is 70 Church Street, Millbrook, NY.

Millbrook High School's music curriculum is administered by Mr. Daniel Dunninger and Mrs. Jennifer Tibbetts.

Millbrook High School competes in Division 4 of the Mid Hudson Athletic League or MHAL along with the high schools of Coleman Catholic, Rhinebeck and Webutuck.

Other member schools include Ellenville, Highland, Hyde Park (FDR), Marlboro, New Paltz, Onteora, Pine Plains, Red Hook, Rondout Valley, Saugerties, Spackenkill, and Wallkill.

MHAL is Section 9 of the New York State Public High School Athletic Association or NYSPHSAA.