The map above shows Pennsylvania and Northern Territory side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Pennsylvania vs Northern Territory Geography
Land area: Pennsylvania has a land area of 44,742 square miles (115,882 km²), while Northern Territory has 520,902 square miles (1,349,129 km²). Northern Territory's land area is 11.6 times larger than Pennsylvania's.
Total area: Pennsylvania: 46,054 square miles (119,279 km²) vs Northern Territory: 520,902 square miles (1,349,129 km²), including inland and coastal water. Northern Territory's total area is 11.3 times larger than Pennsylvania's.
Length: Pennsylvania is 284 miles (458 km) long from north to south; Northern Territory is 1,092 miles (1,758 km). Northern Territory's north-south length is 3.8 times (285%) longer than Pennsylvania's.
Width: Pennsylvania spans 307 miles (495 km) east to west; Northern Territory spans 610 miles (981 km). Northern Territory's east-west width is 2.0 times (99%) wider than Pennsylvania's.
Highest point: Pennsylvania's highest point is Mount Davis at 3,210 feet (978 m); Northern Territory's is Mount Zeil at 5,023 feet (1,531 m). Mount Zeil is 1,813 feet higher than Mount Davis.
Lowest point: Pennsylvania's lowest point is Delaware River at 0 feet; Northern Territory's is Timor Sea at 0 feet. Both lowest points are at or near sea level.
Pennsylvania vs Northern Territory Population and History
Population: Pennsylvania has a population of 13,078,751 (2024), while Northern Territory has 265,457 (2025). Pennsylvania's population is 49.3 times larger than Northern Territory's.
Population density: Pennsylvania: 292.3 people per square mile vs Northern Territory: 0.5. Pennsylvania's population density is 584.6 times higher than Northern Territory's.
Largest metro area: Pennsylvania's largest metropolitan area is Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422 people) vs Northern Territory's Greater Darwin (159,284). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 39.7 times larger than Greater Darwin's.
History: Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd state. Northern Territory: Became a federal territory on January 1, 1911; self-governing since 1978. In its current form, Pennsylvania is the older of the two by 124 years.
Pennsylvania vs Northern Territory Economy
GDP: Pennsylvania's GDP is $1,007.9 billion (2024) vs Northern Territory's $22.4 billion. Pennsylvania's economic output is 45.0 times larger than Northern Territory's.
GDP per capita: Pennsylvania: $77,062 per person vs Northern Territory: $84,383. Northern Territory's GDP per capita is 1.1 times (10%) higher than Pennsylvania's.
Official Websites
Pennsylvania official website · Northern Territory official website
More Size Comparisons
All Pennsylvania size comparisons · All Northern Territory 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.