Pennsylvania's 31st congressional district was one of Pennsylvania's districts of the United States House of Representatives.
Created in 1903, the district served portions of the city of Pittsburgh.
The district later expanded to serve portions of Allegheny County During the 58th Congress, the district served Pittsburgh Wards 1-19 and Ward 23.
[1] During the 81st Congress, the district served Wards 19, 20, 28, 29, 30, and 32 in Pittsburgh and the following portions of Allegheny County.
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