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Araruama: population and official figures

Population (IBGE estimate, 1 July)
137,922
2026
Population, 2022 census
129,671
2022
Area (km²)
638.3
2022
People per km² (2022 census)
203.2
2022

In depth

What is the population of Araruama?

IBGE, Brazil's national statistics institute, estimated the population of Araruama at 137,922 on 1 July 2026, the 231st largest of Brazil's 5,570 municipalities, the 24th largest of the 92 municipalities in Rio de Janeiro state. The 2022 census counted 129,671 residents.

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

Is the population of Araruama growing?

Between the 2010 and 2022 censuses the population of Araruama grew by 17,443, from 112,228 (2010 count adjusted to 2022 boundaries) to 129,671, an average of +1.21% a year; the 109th fastest 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 Araruama changed since the 2022 census?

IBGE's estimates put Araruama's population 8,251 above the 2022 census count by July 2026 (+6.4%), against +5.5% for Brazil as a whole; the estimate was 137,906 in 2025 and 137,773 in 2024.

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

How big is Araruama?

Araruama covers 638.3 km² and had 203.2 residents per km² at the 2022 census, the 112th 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 de Janeiro state's population lives in Araruama?

Araruama holds 0.8% of the estimated 17,225,410 people in Rio de Janeiro state and 0.06% of Brazil's 214,211,951 (2026 estimates).

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

Is Araruama a metropolis?

IBGE's urban hierarchy (REGIC) ranks Araruama (as part of the Araruama/RJ urban area) as a sub-regional centre, level 3B on a scale whose top level is 1A; it is not part of an officially defined metropolitan region.

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

Who runs Araruama?

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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