São Sebastião do Caí Population 2026
São Sebastião do Caí has a population of 24,428, making it the #1430 biggest city in 🇧🇷 Brazil, located in Rio Grande do Sul. It is about 508× smaller than São Paulo, the country's biggest city.
Population (city proper)
24,428
Rank in Brazil
#1430
Coordinates
29.59°S, 51.38°W
~16 m elevation · America/Sao_Paulo
Distance to capital (Brasília)
1,575 km
978 miles, straight line
Other big cities in Rio Grande do Sul
| City | Population | Rank in Brazil |
|---|---|---|
| Porto Alegre | 1,488,252 | #12 |
| Caxias do Sul | 381,270 | #62 |
| Canoas | 328,291 | #77 |
| Pelotas | 320,674 | #80 |
| Viamão | 285,269 | #93 |
| Santa Maria | 283,677 | #94 |
| Gravataí | 265,074 | #101 |
| Novo Hamburgo | 253,841 | #107 |
Cities near São Sebastião do Caí
- Montenegro65,721 people · ~14 km away
- Portão34,071 people · ~18 km away
- Estância Velha47,924 people · ~21 km away
- Ivoti22,983 people · ~21 km away
- Novo Hamburgo253,841 people · ~26 km away
- Dois Irmãos30,709 people · ~28 km away
FAQ
What is the population of São Sebastião do Caí?
São Sebastião do Caí has a population of 24,428 (city proper, latest official figure via GeoNames), making it the #1430 biggest city in Brazil.
What region is São Sebastião do Caí in?
São Sebastião do Caí is located in Rio Grande do Sul, Brazil.
Is São Sebastião do Caí the capital of Brazil?
No, the capital of Brazil is Brasília, about 1,575 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.