About Leetsdale, Pennsylvania
Leetsdale is a borough in Allegheny County, Pennsylvania, along the Ohio River. It is part of the Pittsburgh Metro Area. The population was 1,218 at the 2010 census. The town has gained a certain popularity due to its name, a coincidence with Leetspeak, a common Internet sociolect.  Leetsdale at one time had a formidable industrial manufacturing base, with a Bethlehem Steel mill that closed in the late 1970s.