United State Post Office, Courthouse, and Federal Building
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United State Post Office, Courthouse, and Federal Building

United State Post Office, Courthouse, and Federal Building is a building in Boston, Massachusetts, listed on the National Register of Historic Places on April 8, 2011.

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Last checked October 31, 2026
Location
Boston, Suffolk County, Massachusetts

National Register listing does not mean a place is open to the public. Parking and accessibility are shown only when verified.

History

The John W. McCormack Post Office and Courthouse, formerly the United States Post Office, Courthouse, and Federal Building, is a historic building at 5 Post Office Square in Boston, Massachusetts. The twenty-two-story, 331-foot (101 m) skyscraper was built between 1931 and 1933 to house federal courts, offices, and post office facilities. The Art Deco and Moderne structure was designed in a collaboration between the Supervising Architect of the United States Treasury Department and the Boston architectural firm of Cram and Ferguson. It occupies a city block bounded by Congress, Devonshire, Water, and Milk Streets, and has over 600,000 square feet (56,000 m2) of floor space. The exterior of the building is faced in granite from a variety of New England sources, as well as Indiana limestone. It was built on the site of the 1885 United States Post Office and Sub-Treasury Building.

The building also contained the National Security Agency's Northeast Recruiting Office in Room 406. This office was overseen by the Office of Administration segment within the NSA and officially opened on November 7, 1980. Charles Raduazo acted as the chief headhunter in an effort to scout and employ electrical engineers and mathematicians from New England's elite colleges.

The building is named for John W. McCormack, a long-serving Boston Congressman who was Speaker of the House from 1962 to 1971. It was designated a Boston Landmark by the Boston Landmarks Commission in 1998 and listed on the National Register of Historic Places in 2011.

Excerpt from the Wikipedia article, licensed CC BY-SA 4.0. The official nomination form is linked under Sources.

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Sources