Education in Piaui, Brazil: official figures
Schools in Piaui scored 6.3 out of 10 on the Ideb basic education index for the early primary years (grades 1 to 5) in 2025, joint 10th highest of the 26 states and the Federal District (Brazil: 6.3); the score was 5.9 in 2023 and 2.8 in 2005.
What is the Ideb score of Piaui?
For the lower secondary years (grades 6 to 9), Piaui's Ideb score was 5.4 in 2025, joint 6th highest of the 26 states and the Federal District (Brazil: 5.3), compared with 5.2 in 2023.
Source: Instituto Nacional de Estudos e Pesquisas Educacionais Anisio Teixeira (INEP), Ministry of Education · saved copyHow good are high schools in Piaui?
Piaui's Ideb score for upper secondary school (ensino medio) was 5.0 in 2025, 2nd highest of the 26 states and the Federal District (Brazil: 4.5); it was 3.4 in 2015. The Ideb combines pass rates with Saeb test results in Portuguese and mathematics.
Source: Instituto Nacional de Estudos e Pesquisas Educacionais Anisio Teixeira (INEP), Ministry of Education · saved copyWhat is the literacy rate in Piaui?
13.8% of people aged 15 and over in Piaui could not read and write a simple note in 2024, 2nd highest of the 26 states and the Federal District (Brazil: 5.3%); in 2019 the rate was 15.0%.
Source: Instituto Brasileiro de Geografia e Estatistica (IBGE) · saved copyHow many people in Piaui have a degree?
15.3% of adults aged 25 and over in Piaui had completed higher education in 2024, 9th lowest of the 26 states and the Federal District (Brazil: 20.4%), while 45.3% had no schooling or had not finished primary school (Brazil: 32.0%).
Source: Instituto Brasileiro de Geografia e Estatistica (IBGE) · saved copyHow many years of schooling do young people in Piaui have?
Young adults aged 18 to 29 in Piaui had spent 11.5 years in education on average in 2024, and 67.5% had at least 12 years of schooling (Brazil: 11.9 years and 74.2%).
Source: Instituto Brasileiro de Geografia e Estatistica (IBGE) · saved copyWhat is the high school graduation rate in Piaui?
70.6% of young people in Piaui had completed upper secondary school by the expected age range in 2024 (79.5% of women and 61.2% of men), 10th lowest of the 26 states and the Federal District (Brazil: 75.1%).
Source: Instituto Brasileiro de Geografia e Estatistica (IBGE) · saved copyHow many young people in Piaui go to university?
In 2024, 74.9% of 15- to 17-year-olds in Piaui were in upper secondary school or had finished it, and 26.1% of 18- to 24-year-olds were in or had completed higher education (adjusted net attendance; Brazil: 76.8% and 27.3%).
Source: Instituto Brasileiro de Geografia e Estatistica (IBGE) · saved copyHow many young children in Piaui go to nursery?
35.7% of children aged 0 to 3 in Piaui attended a creche (day nursery) in 2024, 13th lowest of the 26 states and the Federal District (Brazil: 39.7%), and 99.0% of 4- and 5-year-olds attended pre-school.
Source: Instituto Brasileiro de Geografia e Estatistica (IBGE) · saved copyHow big are school classes in Piaui?
Public school classes in Piaui had an average of 20.1 pupils in the early primary years, 23.5 in the lower secondary years and 28.2 in upper secondary school in 2024 (School Census; Brazil: 22.3, 26.6 and 29.3).
Source: Instituto Brasileiro de Geografia e Estatistica (IBGE) · saved copyHow Piaui compares with other states
Ideb, early primary years (grades 1-5) (2025)
Piaui ranks 12 of 27, highest first. All school networks; scale 0-10.
| Rank | Region | Ideb, early primary years (grades 1-5) |
|---|---|---|
| 9 | Distrito Federal | 6.4 |
| 10 | Rio Grande do Sul | 6.3 |
| 11 | Mato Grosso | 6.3 |
| 12 | Piaui | 6.3 |
| 13 | Acre | 6.3 |
| 14 | Rio de Janeiro | 6.1 |
| 15 | Paraiba | 6.1 |
Ideb, lower secondary years (grades 6-9) (2025)
Piaui ranks 9 of 27, highest first. All school networks; scale 0-10.
| Rank | Region | Ideb, lower secondary years (grades 6-9) |
|---|---|---|
| 6 | Rio Grande do Sul | 5.4 |
| 7 | Santa Catarina | 5.4 |
| 8 | Espirito Santo | 5.4 |
| 9 | Piaui | 5.4 |
| 10 | Alagoas | 5.3 |
| 11 | Rio de Janeiro | 5.1 |
| 12 | Pernambuco | 5.1 |
Ideb, upper secondary school (2025)
Piaui ranks 2 of 27, highest first. All school networks; scale 0-10.
| Rank | Region | Ideb, upper secondary school |
|---|---|---|
| 1 | Parana | 5.1 |
| 2 | Piaui | 5.0 |
| 3 | Rio Grande do Sul | 4.9 |
| 4 | Espirito Santo | 4.9 |
| 5 | Goias | 4.8 |
| 6 | Sao Paulo | 4.7 |
| 7 | Pernambuco | 4.7 |
Illiteracy rate, people aged 15 and over (%) (2024)
Piaui ranks 2 of 27, highest first.
| Rank | Region | Illiteracy rate, people aged 15 and over (%) |
|---|---|---|
| 1 | Alagoas | 14.2% |
| 2 | Piaui | 13.8% |
| 3 | Paraiba | 12.7% |
| 4 | Ceara | 11.8% |
| 5 | Maranhao | 11.2% |
| 6 | Sergipe | 10.8% |
| 7 | Rio Grande do Norte | 10.5% |
Adults 25+ with a completed degree (%) (2024)
Piaui ranks 19 of 27, highest first.
| Rank | Region | Adults 25+ with a completed degree (%) |
|---|---|---|
| 16 | Amazonas | 18.2% |
| 17 | Rio Grande do Norte | 17.2% |
| 18 | Rondonia | 16.7% |
| 19 | Piaui | 15.3% |
| 20 | Paraiba | 15.3% |
| 21 | Sergipe | 15.1% |
| 22 | Pernambuco | 14.7% |
Upper secondary completion rate (%) (2024)
Piaui ranks 18 of 27, highest first.
| Rank | Region | Upper secondary completion rate (%) |
|---|---|---|
| 15 | Maranhao | 72.1% |
| 16 | Rio Grande do Sul | 71.2% |
| 17 | Mato Grosso | 71.1% |
| 18 | Piaui | 70.6% |
| 19 | Alagoas | 69.5% |
| 20 | Amapa | 69.4% |
| 21 | Paraiba | 69.4% |
More on Piaui: overview · economy and jobs · health · poverty and living standards · government budget · Brazil
Sources
- Instituto Nacional de Estudos e Pesquisas Educacionais Anisio Teixeira (INEP), Ministry of Education: Ideb 2025: results for regions and federative units (early primary, lower secondary and upper secondary, all school networks), 2005-2025, read 23 October 2026 · saved copy (SHA-256 a8ecdb2cef93…)
- Instituto Brasileiro de Geografia e Estatistica (IBGE): Sintese de Indicadores Sociais 2025, chapter 4 tables (education): Tables 4.1, 4.3, 4.9, 4.11, 4.14, 4.21, 4.22 (PNAD Continua 2024; School Census 2024), read 23 October 2026 · saved copy (SHA-256 fc0eefb8a6ad…)
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