Concordville is an unincorporated community in Concord Township, Delaware County, Pennsylvania, United States. It is located 20 miles west-southwest of Philadelphia, at the junction of U.S. Routes 1 and 322. This intersection can be traced back to two of the earliest roads in Pennsylvania, Baltimore Pike which became U.S. 1, and Concord Pikā¦Concordville is an unincorporated community in Concord Township, Delaware County, Pennsylvania, United States. It is located 20 miles west-southwest of Philadelphia, at the junction of U.S. Routes 1 and 322. This intersection can be traced back to two of the earliest roads in Pennsylvania, Baltimore Pike which became U.S. 1, and Concord Pike, which connected Pennsylvania with Delaware.