US Post Office-Jamaica Main is a historic post office building located at the northwest corner of 164th Street and 89th Avenue in Jamaica in Queens County, New York, United States. It serves the 11432 ZIP Code. It was built in 1932–1934, and is one of two post offices in New York City designed by the architects Cross & Cross as a consultant to the Office of the Supervising Architect. The building is a two-story brick building on a light gray granite base with marble trim in the Colonial Revival style. It features a handsome marble portico supported by four Ionic order columns.[3]