Breinigsville is an unincorporated community located in Lehigh County, Pennsylvania, in the United States. The town is in Upper Macungie Township, approximately 11 miles (18 km) southwest of Allentown and 7 miles (11 km) 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. The population of Breinigsville is 3,556.