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Araguaína: population and official figures

Population (IBGE estimate, 1 July)
184,495
2026
Population, 2022 census
171,301
2022
Area (km²)
4,004.6
2022
People per km² (2022 census)
42.8
2022

In depth

What is the population of Araguaína?

IBGE, Brazil's national statistics institute, estimated the population of Araguaína at 184,495 on 1 July 2026, the 170th largest of Brazil's 5,570 municipalities, the 2nd largest of the 139 municipalities in Tocantins state. The 2022 census counted 171,301 residents.

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

Is the population of Araguaína growing?

Between the 2010 and 2022 censuses the population of Araguaína grew by 20,817, from 150,484 (2010 count adjusted to 2022 boundaries) to 171,301, an average of +1.09% a year; the 129th 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 Araguaína changed since the 2022 census?

IBGE's estimates put Araguaína's population 13,194 above the 2022 census count by July 2026 (+7.7%), against +5.5% for Brazil as a whole; the estimate was 183,024 in 2025 and 181,493 in 2024.

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

How big is Araguaína?

Araguaína covers 4,004.6 km² and had 42.8 residents per km² at the 2022 census, the 33rd 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 Tocantins state's population lives in Araguaína?

Araguaína holds 11.6% of the estimated 1,595,994 people in Tocantins state and 0.09% of Brazil's 214,211,951 (2026 estimates).

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

Is Araguaína a metropolis?

IBGE's urban hierarchy (REGIC) ranks Araguaína as a regional capital, level 2C 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

More figures

Who runs Araguaína?

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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