Dallas
997 km²
Rio de Janeiro
1,221 km²
United States
Brazil
Area Comparison
Dallas is 1.2x smaller than Rio de Janeiro
Population Comparison
Dallas has 5.2x fewer people than Rio de Janeiro
In terms of area, Rio de Janeiro is 1.2x the size of Dallas. Rio de Janeiro spans 1,221 km² (471 mi²) while Dallas covers 997 km² (385 mi²) — a difference of 224 km².
To put Dallas's size in perspective, its area of 997 km² is about 1.1x the size of Berlin. Meanwhile, Rio de Janeiro at 1,221 km² is about 1.3x smaller than London.
Dallas's footprint is roughly about 140,000 American football fields, 17 times the area of Manhattan, or 9 times the area of Paris — pick whichever unit feels intuitive. Rio de Janeiro works out to about 171,000 American football fields, 21 times the area of Manhattan, or 12 times the area of Paris.
Dallas is a city in the U.S. state of Texas. Located in the state's northern region, it is the ninth-most populous city in the United States and third-most populous city in Texas, with a population of 1.3 million at the 2020 census. Along with the city of Fort Worth, Dallas anchors the Dallas–Fort Worth metroplex, the fourth-most populous metropolitan area in the U.S. and the most populous metropolitan area in Texas, at 8.5 million people.
Known as "Big D", Dallas covers 997 km² with a population of 1.3 million. The city was established in 1841. Dallas is known for Dealey Plaza, Reunion Tower, Dallas Cowboys, among other attractions.
Dallas is the ninth-most populous U.S. city and the third-largest in Texas with 1.3 million residents.
Rio de Janeiro, also known simply as Rio, is the capital of the state of Rio de Janeiro. It is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous city in the Americas.
Nicknamed "Cidade Maravilhosa", Rio de Janeiro has an area of 1,221 km² and is home to 6.8 million people. Its history stretches back to 1565. Visitors come for Christ the Redeemer, Sugarloaf Mountain, Copacabana beach, and much more. Getting around is easy with the MetrôRio.
Rio de Janeiro is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous in the Americas.
Dallas has a population density of 1,304 people per km² — a relatively spread-out city. Rio de Janeiro, with 5,528 people per km², is a densely populated city. Rio de Janeiro is dramatically more crowded, with 4.2x the population density.
Density Gap
Rio de Janeiro is 4.2x more densely populated
History
Rio de Janeiro is ~276 years older
Dallas covers 997 km². Cities with a similar urban footprint include Abu Dhabi (972 km²), San Diego (964 km²), Hong Kong (1,114 km²), Berlin (892 km²), or Lagos (1,172 km²).
Rio de Janeiro covers 1,221 km². Cities with a similar urban footprint include San Antonio (1,209 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 Dallas to Rio de Janeiro is 8,408 km (5,224 miles), with an estimated flight time of ~10h 23m.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.