Pennsylvania is a U.S state situated in the Northeastern regions of the United States. Harrisburg is the capital and Philadelphia is the largest city of Pennsylvania. Keystone State is the main nickname of Pennsylvania. Pennsylvania Zip Code started with the digit 1500. The total number of Pennsylvania Zip Code approximately 2,169. The total population of Pennsylvania about 12,801,989. So you can find any information about Pennsylvania especially zip codes, area codes, Populations, cities, county and so on.