Parnaíba Population 2026
Parnaíba has a population of 138,008, making it the #211 biggest city in 🇧🇷 Brazil, located in Piauí. Roughly 0.1% of Brazil's population lives here. It is about 90× smaller than São Paulo, the country's biggest city.
Population (city proper)
138,008
Rank in Brazil
#211
Coordinates
2.90°S, 41.78°W
~9 m elevation · America/Fortaleza
Distance to capital (Brasília)
1,582 km
982 miles, straight line
Other big cities in Piauí
Cities near Parnaíba
- Luís Correia30,641 people · ~13 km away
- Araioses39,052 people · ~14 km away
- Buriti dos Lopes19,654 people · ~32 km away
- Tutóia53,356 people · ~58 km away
- Cocal28,212 people · ~68 km away
- Paulino Neves17,056 people · ~87 km away
FAQ
What is the population of Parnaíba?
Parnaíba has a population of 138,008 (city proper, latest official figure via GeoNames), making it the #211 biggest city in Brazil.
What region is Parnaíba in?
Parnaíba is located in Piauí, Brazil.
Is Parnaíba the capital of Brazil?
No, the capital of Brazil is Brasília, about 1,582 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.