York

Pennsylvania, officially the Commonwealth of Pennsylvania, is a state located in the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It 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. Among all US states, Pennsylvania is the fifth-most populous with over 13 million residents as of the 2020 United States census, the ninth-highest by population density, and the 33rd-largest by land area.Wikipedia

The Mid-Atlantic corridor — New York City south through Philadelphia, Baltimore, and Washington D.C. — is the densest and most economically complex region in the country. Finance and media anchor New York; government, defense, and federal contracting anchor D.C.; healthcare and universities anchor Philadelphia and Baltimore. This makes the region one of the most recession-resistant labor markets in the U.S., though the same fundamentals push housing costs persistently high.

Philadelphia and Baltimore offer substantially lower costs than either New York or D.C. while sitting on the same high-speed rail line, making them increasingly attractive to remote workers and hybrid commuters. The New Jersey and Delaware suburbs fill in between, providing family-oriented communities within commuting range of multiple cities. The region's density means genuine walkability in most urban cores, strong transit infrastructure, and cultural institutions that rival anywhere on earth.