Chicago
606 km²
Seattle
369 km²
USA
United States
Area Comparison
Chicago is 1.6x larger than Seattle
Population Comparison
Chicago has 3.6x more people than Seattle
Yes — Chicago is 1.6x larger than Seattle by area. Chicago spans 606 km² (234 mi²) while Seattle covers 369 km² (142 mi²) — a difference of 237 km².
To put Chicago's size in perspective, its area of 606 km² is roughly the same size as Seoul. Meanwhile, Seattle at 369 km² is about 1.6x smaller than Seoul.
Picture Chicago another way: its area is large enough to fit about 85,000 American football fields, 180 times the area of Central Park, or 10 times the area of Manhattan. Seattle works out to about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
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.
Seattle is the most populous city in the U.S. state of Washington and the Pacific Northwest region of North America. It is the 18th-most populous city in the United States with a population of 780,995 in 2024, while the Seattle metropolitan area at over 4.15 million residents is the 15th-most populous metropolitan area in the nation. The city is the county seat of King County, the most populous county in Washington.
Often called "The Emerald City", Seattle has an area of 369 km² and is home to 0.7 million people. Its history stretches back to 1851. Visitors come for Space Needle, Pike Place Market, Starbucks headquarters, and much more.
Seattle is Washington's most populous city with 780,995 residents in 2024, anchoring the Pacific Northwest.
Chicago has a population density of 4,455 people per km² — a moderately dense city. Seattle, with 2,005 people per km², is a moderately dense city. Chicago is noticeably denser, packing 2.2 times more people per square kilometer.
Density Gap
Chicago is 2.2x 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).
Seattle covers 369 km². Cities with a similar urban footprint include Philadelphia (370 km²), Dhaka (368 km²), Portland (376 km²), Atlanta (348 km²), or Denver (401 km²).
The straight-line distance from Chicago to Seattle is 2,789 km (1,733 miles), with an estimated flight time of ~3h 47m.
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