Leo Holihan lives in Pittsburgh .
`` As of 2017 , a population of 305,704 lives within the city limits , making it the 63rd-largest city in the U.S . The metropolitan population of 2,353,045 is the largest in both the Ohio Valley and Appalachia , the second-largest in Pennsylvania ( behind Philadelphia ) , and the 26th-largest in the U.S.Pittsburgh is located in the south west of the state , at the confluence of the Allegheny , Monongahela , and Ohio rivers , Pittsburgh is known both as `` '' the Steel City '' '' for its more than 300 steel-related businesses and as the `` '' City of Bridges '' '' for its 446 bridges . ''
Pittsburgh