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USA
Portugal
Area Comparison
Chicago is 6.1x larger than Lisbon
Population Comparison
Chicago has 4.9x more people than Lisbon
In terms of area, Chicago is 6.1x the size of Lisbon. Chicago spans 606 km² (234 mi²) while Lisbon covers 100 km² (39 mi²) — a difference of 506 km². You could fit Lisbon inside Chicago approximately 6 times.
To put Chicago's size in perspective, its area of 606 km² is roughly the same size as Seoul. Meanwhile, Lisbon at 100 km² is roughly the same size as Paris (city proper).
Third-largest city in the United States. 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 Deep-dish pizza, Willis Tower, Millennium Park & Cloud Gate, among other attractions. The city's main transit system is the CTA (L train).
Chicago reversed the flow of the Chicago River in 1900, an engineering feat that still stands
Portugal's capital, one of Europe's oldest cities. Also known as "City of Seven Hills", Lisbon has an area of 100 km² and is home to 0.6 million people. Its history stretches back to 1200 BC. Visitors come for Belém Tower, Pastéis de nata, Tram 28, and much more. Getting around is easy with the Lisbon Metro.
Lisbon is older than Rome by about 400 years, making it one of the oldest cities in Western Europe
Looking beyond city limits, the Chicago metropolitan area covers 28,160 km², which is 9.3x larger than greater Lisbon at 3,015 km². The Chicago metro area is also more populous, with 9.5 million people compared to 2.9 million.
Chicago has a population density of 4,455 people per km² — a moderately dense city. Lisbon, with 5,500 people per km², is a densely populated city. Both cities have comparable density, though Lisbon is slightly more compact.
This comparison spans continents — Chicago in North America versus Lisbon in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Chicago has a humid continental climate while Lisbon experiences Mediterranean conditions. When it's noon in Lisbon, it's 6:00 AM in Chicago — a 6-hour time difference.
Size Ratio
Lisbon fits inside Chicago ~6 times
Time Difference
6 hours apart
History
Lisbon is ~3,033 years older
The straight-line distance from Chicago to Lisbon is 6,422 km (3,991 miles), with an estimated flight time of ~8h 3m. See full distance details, including timezone difference and city facts.
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