How long is the route that connects Philadelphia to Lehigh County?
Allentown, Pennsylvania Allentown (Pennsylvania Dutch: "Allenschteddel") is a city located in Lehigh County, Pennsylvania, United States. It is Pennsylvania's third most populous city and the 224th largest city in the United States. As of the 2010 census, the city had a total population of 118,032 and is currently the fastest growing city in all of Pennsylvania. It is the largest city in the metropolitan area known as the Lehigh Valley, which had a population of 821,623 residents as of 2010 . Allentown constitutes a portion of the New York City Combined Statistical Area and is the county seat of Lehigh County. In 2012, the city celebrated the 250th anniversary of its founding in 1762.
Pennsylvania Route 28 Pennsylvania Route 28 (PA 28) is a major state highway which runs for 98 mi from Anderson Street in Pittsburgh to U.S. Route 219 in Brockway in the U.S. state of Pennsylvania. From Pittsburgh to Kittanning it is a 44.5 mi limited access expressway named the Alexander H. Lindsay Memorial Highway or the Allegheny Valley Expressway.