Erie, Pennsylvania is 6.6% larger than Allentown, Pennsylvania.
Area: 47 km2 calculated
Allentown is a city located in Lehigh County, Pennsylvania, United States. It is Pennsylvania's third most populous city, after Philadelphia and Pittsburgh, and the 224th largest city in the United States. Wikipedia
Area: 50 km2 calculated
Erie is a city located in northwestern Pennsylvania, United States. Named for the lake and the Native American tribe that resided along its southern shore, Erie is the state's fourth-largest city, with a population of 102,000. Wikipedia