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Rio de Janeiro in the numbers

Check out eleven fun facts about the city that hosts the world's largest Carnival, according to Guinness.


An unusual fact or a curious date can be a great icebreaker in a conversation and make you look super smart. There are plenty of numbers about Rio de Janeiro, from the years it served as Brazil's capital to the record heat index reached in 2024, and even the number of rivers named Janeiro (the literal translation of "Rio de Janeiro" is "January River"). Spoiler: there are none. Boost your knowledge and jot these down for when you want to impress someone.

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Rio de Janeiro by the numbers


The year the Cidade Maravilhosa was discovered, specifically on the first day of the year, by a Portuguese expedition led by Gaspar de Lemos. Believing they had reached the mouth of a great river, they named the bay Rio de Janeiro.

6.2 million

This is the current population of Rio de Janeiro according to the 2022 Census.



The number of neighborhoods in Rio de Janeiro. These are grouped into 33 administrative regions and nine subprefectures.


The total area of the municipality in square kilometers.


1.45 tons

At 770 meters above sea level, the Christ the Redeemer statue stands on top of Corcovado Mountain. Inaugurated in 1931, the monument is 30 meters tall, weighs 1.45 tons, and was sculpted by engineer Heitor da Silva Costa with the help of sculptor Landowski.


Number of years Rio de Janeiro was the capital of Brazil. The Cidade Maravilhosa held this role from 1763 to 1960. Interestingly, Rio was also the capital of Portugal. In the early 19th century, when King Dom João VI fled with the royal family and his court, Rio became the capital of the European kingdom.


190 000

The number of people that attended a football match between Brazil and Uruguay in 1950 at Maracanã Stadium – the largest audience in World Cup history.

3 845 721

The total number of arrivals at Galeão Airport in 2023, a significant increase from the 2 854 855 recorded in 2022.



The length of Rio’s coastline in kilometres.


The record heat index Rio hit on March 17, 2024.



The number of rivers called Janeiro.

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