The village was founded in the early 20th century by Polish immigrants. Today, still around 90% of the population is Polish-Brazilian and the nickname of Áurea is the Polish Capital of Brazil (Capital Polonesa do Brasil) or the Capital of Polish Brazilians (Capital Polonesa dos Brasileiros). In July 2022 the Polish language became legally declared as another official language of the municipality of Áurea.
- IBGE 2020
- Polish made official language in Brazilian town founded by Poles - Notes from Poland, 1 August 2022.
- Lei Ordinária 2181 2022 de Áurea RS, 22 July 2022. (in Portuguese)
- Język polski dołącza do języków urzędowych w brazyliskiej gminie Aurea - Wspólnota Polska, 27 July 2022. (in Polish)