Pio IX Population 2026

Pio IX has a population of 17,613, making it the #1974 biggest city in 🇧🇷 Brazil, located in Piauí. It is about 704× smaller than São Paulo, the country's biggest city.

Location of Pio IX (capital Brasília shown for reference). Boundaries: Natural Earth.

Population (city proper)

17,613

Rank in Brazil

#1974

Coordinates

6.84°S, 40.61°W

~584 m elevation · America/Fortaleza

Distance to capital (Brasília)

1,274 km

791 miles, straight line

Other big cities in Piauí

City	Population	Rank in Brazil
Teresina	871,126	#19
Parnaíba	138,008	#211
Picos	83,090	#396
Piripiri	65,538	#509
Floriano	62,036	#543
Barras	47,938	#694
Altos	47,453	#705
União	46,119	#720

Cities near Pio IX

Ipueiras17,111 people · ~28 km away
Campos Sales25,135 people · ~37 km away
Salitre16,633 people · ~53 km away
Araripe19,783 people · ~67 km away
Parambu31,445 people · ~70 km away
Assaré21,697 people · ~82 km away

FAQ

What is the population of Pio IX?

Pio IX has a population of 17,613 (city proper, latest official figure via GeoNames), making it the #1974 biggest city in Brazil.

What region is Pio IX in?

Pio IX is located in Piauí, Brazil.

Is Pio IX the capital of Brazil?

No, the capital of Brazil is Brasília, about 1,274 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.

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