Portland
376 km²
San Antonio
1,209 km²
United States
United States
Area Comparison
Portland is 3.2x smaller than San Antonio
Population Comparison
Portland has 2.2x fewer people than San Antonio
In terms of area, San Antonio is 3.2x the size of Portland. San Antonio spans 1,209 km² (467 mi²) while Portland covers 376 km² (145 mi²) — a difference of 833 km². You could fit Portland inside San Antonio approximately 3 times.
To put Portland's size in perspective, its area of 376 km² is about 1.6x smaller than Seoul. Meanwhile, San Antonio at 1,209 km² is about 1.3x smaller than London.
Picture Portland another way: its area is large enough to fit about 53,000 American football fields, 190 times the area of Monaco, or 110 times the area of Central Park. For San Antonio, that's about 169,000 American football fields, 20 times the area of Manhattan, or 11 times the area of Paris.
Portland is the most populous city in the U.S. state of Oregon. Located in the Pacific Northwest at the confluence of the Willamette and Columbia rivers, it is the 28th-most populous city in the United States, sixth-most populous on the West Coast, and fourth-most populous in the Pacific Northwest, with a population of 652,503 at the 2020 census. The Portland metropolitan area, with over 2.54 million residents, is the 26th-largest metropolitan area in the nation.
Known as "Rose City", Portland covers 376 km² with a population of 0.7 million. Portland is known for Powell's City of Books, Voodoo Doughnut, Washington Park, among other attractions.
Portland sits at the confluence of the Willamette and Columbia rivers in the Pacific Northwest.
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.
Also known as "Alamo City", San Antonio has an area of 1,209 km² and is home to 1.4 million people. Its history stretches back to 1718. Visitors come for The Alamo, San Antonio River Walk, Tower of the Americas, and much more.
San Antonio is the seventh-most populous city in the United States and second-most populous in Texas, with 1.43 million residents.
Portland has a population density of 1,729 people per km² — a relatively spread-out city. San Antonio, with 1,183 people per km², is a relatively spread-out city. Both cities have comparable density, though Portland is slightly more compact.
Size Ratio
Portland fits inside San Antonio ~3 times
Density Gap
Portland is 1.5x more densely populated
Portland covers 376 km². Cities with a similar urban footprint include Philadelphia (370 km²), Seattle (369 km²), Dhaka (368 km²), Denver (401 km²), or Atlanta (348 km²).
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).
The straight-line distance from Portland to San Antonio is 2,766 km (1,719 miles), with an estimated flight time of ~3h 45m.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.