San Antonio
1,209 km²
Seattle
369 km²
United States
United States
Area Comparison
San Antonio is 3.3x larger than Seattle
Population Comparison
San Antonio has 1.9x more people than Seattle
Yes — San Antonio is 3.3x larger than Seattle by area. San Antonio spans 1,209 km² (467 mi²) while Seattle covers 369 km² (142 mi²) — a difference of 840 km². You could fit Seattle inside San Antonio approximately 3 times.
To put San Antonio's size in perspective, its area of 1,209 km² is about 1.3x smaller than London. Meanwhile, Seattle at 369 km² is about 1.6x smaller than Seoul.
In more relatable units, San Antonio's 1,209 km² is about 169,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris. Seattle works out to about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
San Antonio is a city in the U.S. state of Texas. It is the seventh-most populous city in the United States, the second-most populous city in Texas, and the second-most populous city in the Southern U.S., with a population of 1.43 million at the 2020 census. The Greater San Antonio metropolitan area, with an estimated 2.76 million residents, ranks as the third-largest metropolitan area in Texas and the 24th-largest in the nation. It is the county seat of Bexar County.
Known as "Alamo City", San Antonio covers 1,209 km² with a population of 1.4 million. The city was established in 1718. San Antonio is known for The Alamo, San Antonio River Walk, Tower of the Americas, among other attractions.
San Antonio is the seventh-most populous city in the United States and second-most populous in Texas, with 1.43 million residents.
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.
Nicknamed "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.
San Antonio has a population density of 1,183 people per km² — a relatively spread-out city. Seattle, with 2,005 people per km², is a moderately dense city. Seattle is noticeably denser, packing 1.7 times more people per square kilometer.
Size Ratio
Seattle fits inside San Antonio ~3 times
Density Gap
Seattle is 1.7x more densely populated
History
San Antonio is ~133 years older
San Antonio covers 1,209 km². Cities with a similar urban footprint include Rio de Janeiro (1,221 km²), Lagos (1,172 km²), Rome (1,285 km²), Los Angeles (1,302 km²), or Hong Kong (1,114 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 San Antonio to Seattle is 2,874 km (1,786 miles), with an estimated flight time of ~3h 53m.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.