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is an unincorporated community located in Lehigh County, Pennsylvania, in the United States. The town is in Upper Macungie Township, approximately southwest of Allentown and east of Kutztown, Pennsylvania.
Breinigsville is located along U.S. Route 222, between its intersection with the southern terminus of Pennsylvania Route 863 and Route 222's Trexlertown Bypass (Fred Jaindl Memorial Highway). The town of Breinigsville is located between Trexlertown and Maxatawny.
Breinigsville was named for George Breinig, who settled on a tract in the vicinity in 1789. Around 1855, the Allentown Railroad was graded through Breinigsville, but the tracks were never laid. In the 1860s, the Catasauqua and Fogelsville Railroad used the grade to build from Trexlertown, on its main line, into Breinigsville, as part of a branch to serve local limonite (iron ore) mines. These mines had shut down by the end of World War I, and the rails through Breinigsville were removed in the 1940s.