Mapped: South America’s Biggest Cities in 2025
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Mapped: South America’s Most Populated Cities
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Key Takeaways
São Paulo is South America’s largest city, with nearly 23 million people, far ahead of any other urban center.
Brazil dominates the ranking, accounting for more than half of the continent’s 50 most populated cities.
South America is home to some of the world’s fastest-growing and most densely populated urban areas.
This map highlights South America’s most populated cities, showing where people are concentrated and how urban growth varies by country.
The data for this visualization comes from World Population Review (2025).
Brazil’s Urban Dominance
Brazil stands out as the continent’s urban heavyweight. São Paulo alone approaches 23 million residents, making it not only South America’s largest city but one of the largest in the world. In fact, São Paulo’s population exceeds that of well-known megacities like Mexico City, Moscow, Beijing, and New York.
Rio de Janeiro follows closely, reinforcing Brazil’s central role in the region’s urban landscape.
RankCityCountryPopulation
1São Paulo Brazil22,990,000
2Buenos Aires Argentina15,752,300
3Rio de Janeiro Brazil13,923,200
4Bogota Colombia11,795,800
5Lima Peru11,517,300
6Santiago Chile6,999,460
7Belo Horizonte Brazil6,351,680
8Brasilia Brazil4,990,930
9Recife Brazil4,344,050
10Fortaleza Brazil4,284,450
11Porto Alegre Brazil4,268,960
12Medellin Colombia4,172,810
13Salvador Brazil4,029,910
14Curitiba Brazil3,889,140
15Asuncion Paraguay3,627,220
16Campinas Brazil3,491,580
17Guayaquil Ecuador3,244,750
18Caracas Venezuela3,015,110
19Goiania Brazil2,927,080
20Cali Colombia2,916,790
21Belem Brazil2,453,800
22Manaus Brazil2,434,640
23Maracaibo Venezuela2,432,440
24Barranquilla Colombia2,396,400
25Valencia Venezuela2,030,790
26Quito Ecuador2,017,260
27La Paz Bolivia1,997,370
28Santa Cruz de la Sierra Bolivia1,955,356
29Montevideo Uruguay1,788,170
30Cordoba Argentina1,640,600
31Rosario Argentina1,631,090
32Natal Brazil1,575,050
33Cochabamba Bolivia1,460,280
34Joao Pessoa Brazil1,447,780
35Bucaramanga Colombia1,411,010
36Maceio Brazil1,387,920
37Joinville Brazil1,374,630
38Florianopolis Brazil1,323,850
39Barquisimeto Venezuela1,281,730
40Maracay Venezuela1,270,320
41Mendoza Argentina1,257,180
42Guarulhos Brazil1,169,577
43Cartagena Colombia1,105,540
44Aracaju Brazil1,081,930
45Teresina Brazil1,068,550
46San Miguel de Tucuman Argentina1,051,040
47Valparaiso Chile1,024,430
48Nova Iguacu Brazil1,002,118
49Ciudad Guayana Venezuela991,388
50Arequipa Peru983,715
Beyond these megacities, Brazil places numerous cities throughout the top 50, including Belo Horizonte, Brasília, Recife, and Fortaleza. Population is not concentrated in a single part of the country, with major cities spread from the south near Uruguay to the north near Venezuela.
Major Hubs Across the Southern Cone
Argentina, Colombia, and Peru also feature prominently. Buenos Aires ranks second overall, with more than 15 million people, reflecting its status as a political, cultural, and financial hub. Colombia places multiple cities on the list, including Bogotá, Medellín, Cali, and Barranquilla.
These cities serve as national anchors for commerce and transportation. Their growth mirrors broader demographic shifts from rural areas into metropolitan regions across the continent.
Rising Cities Beyond the Megacities
While the top five cities dominate by size, many mid-tier cities are rapidly expanding. Places like Santa Cruz de la Sierra, Campinas, and Arequipa illustrate how secondary cities are absorbing population growth as megacities become more saturated.
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