State of Brazil
Piauí
Piauí is a state of Brazil. It covers about 252,000 km² (97,300 mi²), the 11th largest of the 27 states and districts in Natural Earth’s file for Brazil, and about the same size as Ecuador. About 3.3 million people live there (Wikidata, 2022).
500 km
- Ecuador
- Piauí
Facts
| Area, measured | 252,000 km²97,300 mi² |
|---|---|
| Official area | 252,000 km²Wikidata · agrees with our measure |
| Share of Brazil | 3.0%of the area of the 27 states and districts |
| Rank by area | 11th of 27states and districts of Brazil |
| Population | 3.3 millionWikidata, 2022 · the census year of every unit |
| Density | 13 people per km² |
| Capital | Teresina |
| Latitude range | 11°S to 3°S |
| Type | StateBR-PI |
What the numbers say about Piauí
- Piauí covers 3.0% of the area of Brazil and ranks 18th of 27 by population, against 11th by area.
- It would take 33.6 states and districts the size of Piauí to cover Brazil.
- Piauí holds 1.6% of the 203.1 million people that Wikidata’s 2022 figures give for the 27 states and districts together: about 1 in 62.
- The largest, Amazonas, is 6.21× the size of Piauí; the smallest, Federal District, is 2.3% of it.
- Closest in size within Brazil: São Paulo (249,000 km², 1.01×) and Rondônia (238,000 km², 1.06×).
- Counted as a country, Piauí would be larger than 162 of the 239 countries and territories listed on sizeversus, and would rank 78th by area, between Ecuador (255,000 km²) and Guinea (244,000 km²).
- With 3.3 million people it would rank 137th of 238 by population.
- Piauí has 13 people per km², about the density of Turkmenistan, which has 13 per km².
- That makes Piauí the 18th most densely populated of the 27 states and districts, 54% of the average for Brazil (24 per km²).
- Piauí lies at 7°S, close to the equator, where a standard web map (Web Mercator) is nearly true to size: it inflates area by only about 1.0×.
- Laid out flat, Piauí stretches about 906 km north to south and 613 km east to west.
- Wikidata's official figure of 252,000 km² agrees with our measured area of 252,000 km², to within 2%.
About the same size as
Beside the regions of other countries
The closest region by area and by people in each of the other countries that have regional pages here, within a factor of 2. All 395 regions side by side.
- ChinaAreaGuangxi1.06× · 237,000 km²PeopleTibet90% · 3.6 million (2020)
- United StatesAreaOregon1.00× · 252,000 km²PeopleUtah1.00× · 3.3 million (2020)
- IndiaAreaUttar Pradesh1.05× · 240,000 km²PeopleMeghalaya1.10× · 3.0 million (2011)
- GermanyAreanone within 2×PeopleSchleswig-Holstein1.11× · 3.0 million (2022)
- FranceAreanone within 2×PeopleNormandy0.98× · 3.3 million (2022)
- ItalyAreanone within 2×PeopleTuscany88% · 3.7 million (2019)
- SpainAreanone within 2×PeopleGalicia1.21× · 2.7 million (2024)
- JapanAreanone within 2×PeopleShizuoka0.91× · 3.6 million (2021)
- CanadaAreaNewfoundland and Labrador62% · 403,000 km²PeopleAlberta77% · 4.3 million (2021)
- AustraliaAreaVictoria1.11× · 228,000 km²PeopleWestern Australia1.09× · 3.0 million (2024)
- MexicoAreaChihuahua1.02× · 248,000 km²PeopleBaja California0.99× · 3.3 million (2015)
- ThailandAreanone within 2×PeopleNakhon Ratchasima1.24× · 2.6 million (2020)
Where Piauí sits in Brazil
All 27 drawn on one equal-area map, so sizes are comparable. Select another to open it.
Compare Piauí
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Sources and method
- Outline
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
- Boundary
- De facto, as drawn by Natural Earth.
- Area
- Measured on the WGS84 ellipsoid from the full-detail outline, shown rounded. The region’s whole area is counted, every island included.
- Official figures
- Area, population and capital from Wikidata (CC0), fetched 2026-11-12
- Population
- Wikidata, 2022. Brazil’s units share the 2022 figures where Wikidata has them; the year is shown wherever the figure is.
- Matching
- Countries come from Natural Earth’s country file. Places whose status is contested and dependencies are never used as automatic matches. A region under 2,500 km² is matched against the small countries and island nations.
- Data built
- 2026-11-12