Philadelphia
370 km²
Phoenix
1,341 km²
United States
United States
Area Comparison
Philadelphia is 3.6x smaller than Phoenix
Population Comparison
Philadelphia has 1.0x fewer people than Phoenix
Yes — Phoenix is 3.6x larger than Philadelphia by area. Phoenix spans 1,341 km² (518 mi²) while Philadelphia covers 370 km² (143 mi²) — a difference of 971 km². You could fit Philadelphia inside Phoenix approximately 3 times.
To put Philadelphia's size in perspective, its area of 370 km² is about 1.6x smaller than Seoul. Meanwhile, Phoenix at 1,341 km² is about 1.2x smaller than London.
Picture Philadelphia another way: its area is large enough to fit about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park. Phoenix, by comparison, equals about 188,000 American football fields, 23 times the area of Manhattan, or 13 times the area of Paris.
Philadelphia, colloquially referred to as Philly, is the most populous city in the U.S. state of Pennsylvania, and the sixth-most populous city in the United States, with a Census-estimated population of 1,574,281 in July 2025. The Philadelphia metropolitan area has 6.33 million residents and is the nation's ninth-largest metropolitan area. Philadelphia is known for its culture, cuisine, and history, maintaining contemporary influence in business and technology, sports, and music.
Known as "Philly", Philadelphia covers 370 km² with a population of 1.6 million. The city was established in 1682. Philadelphia is known for Liberty Bell, Independence Hall, Philly Cheesesteak, among other attractions.
Philadelphia is the sixth-most populous US city, with an estimated 1,574,281 residents as of July 2025.
Phoenix is the capital and most populous city of the U.S. state of Arizona. With over 1.6 million residents at the 2020 census, Phoenix is the fifth-most populous city in the United States and the most populous state capital. The Phoenix metropolitan area, with an estimated 5.19 million residents, is the tenth-most populous metropolitan area in the U.S. and the most populous in the Mountain states and Southwest.
Nicknamed "Valley of the Sun", Phoenix has an area of 1,341 km² and is home to 1.6 million people. It was established in 1868. Visitors come for Camelback Mountain, Desert Botanical Garden, Heard Museum, and much more.
Phoenix is the most populous U.S. state capital and the fifth-largest city in the country with 1.6 million residents.
Philadelphia has a population density of 4,324 people per km² — a moderately dense city. Phoenix, with 1,201 people per km², is a relatively spread-out city. Philadelphia is dramatically more crowded, with 3.6x the population density.
Size Ratio
Philadelphia fits inside Phoenix ~3 times
Density Gap
Philadelphia is 3.6x more densely populated
History
Philadelphia is ~186 years older
Philadelphia covers 370 km². Cities with a similar urban footprint include Seattle (369 km²), Dhaka (368 km²), Portland (376 km²), Atlanta (348 km²), or Denver (401 km²).
Phoenix covers 1,341 km². Cities with a similar urban footprint include Los Angeles (1,302 km²), Rome (1,285 km²), Rio de Janeiro (1,221 km²), Delhi (1,484 km²), or Mexico City (1,485 km²).
The straight-line distance from Philadelphia to Phoenix is 3,344 km (2,078 miles), with an estimated flight time of ~4h 26m.
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