The school's campus is on the north side of the Queen Anne Hill neighborhood, near the Washington State Route 99 Aurora Bridge.

Seattle Country Day School is a member of the following organizations:[3] Originally housed in St. Elizabeth's church basement in Burien and conceived as an educational alternative during the Sputnik era of the late 1950s, SCDS developed through two interim organizations, Adastra ("to the stars") and Phoenix ("rising from the ashes"), before becoming incorporated as Seattle Country Day School in 1964.

[5] All Seattle Country Day School students study a core of subjects, including reading and writing, math, science, art, music, technology, and Spanish.

With an inquiry-based approach as a foundation, teachers draw ideas from varied sources, including texts, current research in their field, popular art and media, and more.

Students engage in Nordic instruction at Snoqualmie Pass, alpine skiing at Crystal Mountain, and a hybrid skating and service learning program in Seattle.