


There is no direct access between I-76 and I-81 instead, a 1-mile (1.6 km) stretch of US 11 connects Exit 226 on I-76 with Exit 52 on I-81. Route 11 cross in a triangle formation near the center of the township. Interstate 76 (the Pennsylvania Turnpike), Interstate 81, and U.S. Unincorporated communities in the township include Donnellytown in the northeast, Carlisle Springs in the northwest, and part of the Schlusser census-designated place along the western border. Conodoguinet Creek, a tributary of the Susquehanna River, crosses the center of the township. Middlesex Township is in northeastern Cumberland County, bordered to the north by Perry County along the crest of Blue Mountain. As of the 2010 census, the township had a total population of 7,040. Middlesex Township is a township located in Cumberland County, Pennsylvania, United States.
