Category: West Mifflin, Pennsylvania
Categories: Allegheny County, Pennsylvania
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- West Mifflin is a borough in Allegheny County, Pennsylvania.
Originally a township, Mifflin Township was one of the seven original townships, when Allegheny county was carved out of Washington and Westmoreland Counties on December 16, 1788. [1]
Mifflin Township ceased to exist as of January 3, 1944 – after 156 years. West Mifflin was incorporated as a borough January 3, 1944.
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