The map above shows United States and Pennsylvania side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
United States vs Pennsylvania Geography
Land area: United States has a land area of 3,533,467 square miles (9,151,637 km²), while Pennsylvania has 44,742 square miles (115,882 km²). United States' land area is 79.0 times larger than Pennsylvania's.
Total area: United States: 3,802,784 square miles (9,849,165 km²) vs Pennsylvania: 46,054 square miles (119,279 km²), including inland and coastal water. United States' total area is 82.6 times larger than Pennsylvania's.
Length: United States is 3,628 miles (5,839 km) long from north to south; Pennsylvania is 284 miles (458 km). United States' north-south length is 12.8 times longer than Pennsylvania's.
Width: United States spans 4,824 miles (7,763 km) east to west; Pennsylvania spans 307 miles (495 km). United States' east-west width is 15.7 times wider than Pennsylvania's.
Highest point: United States's highest point is Denali at 20,308 feet (6,190 m); Pennsylvania's is Mount Davis at 3,210 feet (978 m). Denali is 17,098 feet higher than Mount Davis.
Lowest point: United States's lowest point is Death Valley at -279 feet; Pennsylvania's is Delaware River at 0 feet. United States's lowest point is 279 feet lower.
United States vs Pennsylvania Population and History
Population: United States has a population of 340,110,988 (2024), while Pennsylvania has 13,078,751 (2024). United States' population is 26.0 times larger than Pennsylvania's.
Population density: United States: 96.3 people per square mile vs Pennsylvania: 292.3. Pennsylvania's population density is 3.0 times (204%) higher than United States'.
Biggest city: United States's biggest city is New York with 8,478,072 people; Pennsylvania's is Philadelphia with 1,573,916. New York's population is 5.4 times (439%) larger than Philadelphia's.
Largest metro area: United States's largest metropolitan area is New York-Newark-Jersey City, NY-NJ metro area (19,940,274 people) vs Pennsylvania's Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422). New York-Newark-Jersey City, NY-NJ metro area's population is 3.1 times (215%) larger than Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's.
History: United States: Declared independence on July 4, 1776. Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd state. In its current form, United States is the older of the two by 11 years.
United States vs Pennsylvania Economy
GDP: United States's GDP is $30,769.7 billion (2025) vs Pennsylvania's $1,007.9 billion. United States' economic output is 30.5 times larger than Pennsylvania's.
GDP per capita: United States: $89,599 per person vs Pennsylvania: $77,062. United States' GDP per capita is 1.2 times (16%) higher than Pennsylvania's.
Official Websites
United States official website · Pennsylvania official website
More Size Comparisons
All United States size comparisons · All Pennsylvania size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.