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Viamão: population and official figures

Population (IBGE estimate, 1 July)
231,994
2026
Population, 2022 census
224,112
2022
Area (km²)
1,496.5
2022
People per km² (2022 census)
149.8
2022

In depth

What is the population of Viamão?

IBGE, Brazil's national statistics institute, estimated the population of Viamão at 231,994 on 1 July 2026, the 142nd largest of Brazil's 5,570 municipalities, the 8th largest of the 497 municipalities in Rio Grande do Sul state. The 2022 census counted 224,112 residents.

Source: Instituto Brasileiro de Geografia e Estatística (IBGE) · saved copy

Is the population of Viamão growing?

Between the 2010 and 2022 censuses the population of Viamão fell by 15,272, from 239,384 (2010 count adjusted to 2022 boundaries) to 224,112, an average of -0.55% a year; the 10th slowest of 320 major Brazilian cities (Brazil: +0.52% a year).

Source: Instituto Brasileiro de Geografia e Estatística (IBGE) · saved copy

How has the population of Viamão changed since the 2022 census?

IBGE's estimates put Viamão's population 7,882 above the 2022 census count by July 2026 (+3.5%), against +5.5% for Brazil as a whole; the estimate was 231,996 in 2025 and 232,113 in 2024.

Source: Instituto Brasileiro de Geografia e Estatística (IBGE) · saved copy

How big is Viamão?

Viamão covers 1,496.5 km² and had 149.8 residents per km² at the 2022 census, the 87th least densely populated of 320 major Brazilian cities (Brazil: 23.86 per km²).

Source: Instituto Brasileiro de Geografia e Estatística (IBGE) · saved copy

What share of Rio Grande do Sul state's population lives in Viamão?

Viamão holds 2.1% of the estimated 11,233,317 people in Rio Grande do Sul state and 0.11% of Brazil's 214,211,951 (2026 estimates).

Source: Instituto Brasileiro de Geografia e Estatística (IBGE) · saved copy

Is Viamão a metropolis?

IBGE's urban hierarchy (REGIC) ranks Viamão (as part of the Porto Alegre/RS urban area) as a metropolis, level 1C on a scale whose top level is 1A, and Viamão is part of the Região Metropolitana de Porto Alegre.

Source: Instituto Brasileiro de Geografia e Estatística (IBGE) · saved copy

Who runs Viamão?

In Brazil, cities and towns are run by municipalities: Mayor (prefeito) and council (câmara de vereadores) directly elected for four years; mayors can serve two terms in a row. Primary schools, basic health care, urban planning, local transport, waste; each has its own organic law.

How local power works in Brazil

Cities of a similar size in Brazil

Up a level: all cities in Brazil · Brazil · government and power

Sources

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