In 1955, as the school's enrollment continued to increase, Buckley moved to its current location in the Village of North Hills in Roslyn.

[1] Buckley has a 28-acre (110,000 m2) campus, which includes two classroom buildings, library, three athletic fields, tennis courts, and three playgrounds.

The campus includes four outdoor swimming pools, which are open only in the summer during Buckley Camp and end-of-the-year parties,[3] and a pond.

The campus was developed on land once part of a colonial farm owned by Isaac Underhill Willets.

Every 8th grader designs and carves a square foot wooden plaque; these are installed in the hallways of the school and remain displayed on campus forever.