Borough of Sewickley, located in Allegheny County, Pennsylvania, approximately 11 miles northwest of Pittsburgh. Sewickley is an Indian word for "Sweet Water" and has a history that dates back to the mid 1700's, with the first written mention of Sewickley dated December 31, 1767. The Borough was incorporated in 1853 and has a population or 3,902 according to the 2000 Census. Sewickley is one...