Pennsylvania

Pennsylvania Earth Science and Remote Sensing Unit, Lyndon B. Johnson Space Center, Public domain

State of the United States of America

Pennsylvania, officially the Commonwealth of Pennsylvania, is a state located in the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. The state borders Delaware to its southeast, Maryland to its south, forming the Mason–Dixon line, West Virginia to its southwest, Ohio to its west, the Canadian province of Ontario to its northwest via Lake Erie, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania's most populous city is Philadelphia, and the state capital is Harrisburg. Pennsylvania is the fifth-most populous U.S. state, home to over 13 million residents as of the 2020 United States census. Pennsylvania has the ninth-highest by population density, and is the 33rd-largest by land area. The largest metropolitan statistical area is the Philadelphia metropolitan area, centered on Philadelphia, the sixth-most populous U.S. city. Pennsylvania's second-largest metropolitan area, Greater Pittsburgh, is centered in and around Pittsburgh, the commonwealth's second-largest city.

Also known as...Commonwealth of Pennsylvania, PA, Keystone State, Penna., Pennsylvania, United States, State of Pennsylvania, Pa., and US-PA
Health US & Canada
Pennsylvania reports first US measles deaths in decades

Two unvaccinated Pennsylvania residents died from measles, the first US deaths from the disease in decades.