How Big Is Seattle?
United States
Area
369 km²
142 mi²
Population
0.7M
Density
2,005/km²
Founded
1851
Seattle Size Overview
Seattle covers an area of 369 km² (142 mi²) in United States. City in Washington, United States. The city is often called "The Emerald City". To put this in perspective, Seattle is about 1.6x smaller than Seoul. In more relatable units, that's about 52,000 American football fields, 180 times the area of Monaco, or 110 times the area of Central Park.
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.
With a population of 0.7 million, Seattle has a population density of 2,005 people per km².
Seattle has a history stretching back to 1851. The city is renowned for Space Needle, Pike Place Market, Starbucks headquarters, and Amazon HQ.
Did You Know?
- Seattle is Washington's most populous city with 780,995 residents in 2024, anchoring the Pacific Northwest.
- The Seattle metropolitan area tops 4.15 million people, ranking as the 15th-largest metro in the United States.
- Seattle serves as the county seat of King County, the most populous county in all of Washington state.
Compare Seattle with Other Cities
Compare Seattle with any city using our interactive map tool.
Cities Similar in Size to Seattle
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).