Chicago
606 km²
Perth
6,417 km²
USA
Australia
Area Comparison
Chicago is 10.6x smaller than Perth
Population Comparison
Chicago has 1.3x more people than Perth
Perth is significantly larger, covering 10.6 times the area of Chicago. Perth spans 6,417 km² (2,478 mi²) while Chicago covers 606 km² (234 mi²) — a difference of 5,811 km². You could fit Chicago inside Perth approximately 10 times.
To put Chicago's size in perspective, its area of 606 km² is roughly the same size as Seoul. Meanwhile, Perth at 6,417 km² is roughly the same size as Shanghai.
In more relatable units, Chicago's 606 km² is about 85,000 American football fields, 180 times the area of Central Park, or 10 times the area of Manhattan. For Perth, that's about 899,000 American football fields, 110 times the area of Manhattan, or 61 times the area of Paris.
Chicago is the most populous city in the U.S. state of Illinois and in the Midwestern United States. Located on the western shore of Lake Michigan, it is the third-most populous city in the United States, with a population of 2.74 million at the 2020 census. The Chicago metropolitan area has 9.41 million residents and is the third-largest metropolitan area in the country. Chicago is the seat of Cook County, the second-most populous county in the U.S.
Known as "The Windy City", Chicago covers 606 km² with a population of 2.7 million. The city was established in 1833. Chicago is known for Willis Tower, Millennium Park Bean, Navy Pier, among other attractions. The city's main transit system is the CTA (L train).
Chicago is the third-most populous city in the United States with 2.74 million residents at the 2020 census.
Perth is the capital city of Western Australia. It is the fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth as of 2023. The world's most isolated major city by certain criteria, Perth is part of the South West Land Division of Western Australia, with most of Perth's metropolitan area on the Swan Coastal Plain between the Indian Ocean and the Darling Scarp.
Often called "City of Light", Perth has an area of 6,417 km² and is home to 2.1 million people. The city dates back to 1829. Visitors come for Swan River, Kings Park, Cottesloe Beach, and much more.
Perth is considered the world's most isolated major city by certain criteria, sitting on Australia's west coast.
Chicago has a population density of 4,455 people per km² — a moderately dense city. Perth, with 333 people per km², is a low-density, sprawling urban area. Chicago is dramatically more crowded, with 13.4x the population density.
Size Ratio
Chicago fits inside Perth ~10 times
Density Gap
Chicago is 13.4x more densely populated
Chicago covers 606 km². Cities with a similar urban footprint include Seoul (605 km²), Madrid (604 km²), Mumbai (603 km²), Toronto (630 km²), or Hyderabad (650 km²).
Perth covers 6,417 km². Cities with a similar urban footprint include Shanghai (6,341 km²), Guangzhou (7,434 km²), Istanbul (5,461 km²), Wuhan (8,569 km²), or Melbourne (9,993 km²).
The straight-line distance from Chicago to Perth is 17,664 km (10,976 miles), with an estimated flight time of ~21h 17m.
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