The U.S. Post Office in Spring Valley, New York, is located on North Madison Street. It is a brick building from the mid-1930s that serves the ZIP Code 10977, covering the village of Spring Valley. Its Colonial Revival design, unique to Spring Valley among post offices in New York, emphasizes the Greek Revival precedents of the style. Its interior, like many other post offices built during the New Deal, features public art, in this case a mural. In 1989 it was listed on the National Register of Historic Places along with many other post offices in the state.