The town of Posse arose with the arrival of Northeastern migrants fleeing the drought in search of fertile lands in the mid-19th century.

Among the pioneers there were many descendants of Argentinians and Portuguese and many of the streams and rivers had names remembering those far away lands—Rio Corrente, Rio Prata, and Porto Buenos Aires.

The town did not progress because it was hit by malaria and the first settlers went to the higher lands at the foot of Serra Geral, where they formed another settlement.

The new town received the name "Posse" (possession) because the inhabitants had seized the land along the Passagem do Gerais stream, in 1830.

[2] Posse has a privileged location at the foot of the Serra das Araras, with an average temperature of 25 °C and a supply of mineral water taken from the slopes of the mountains.

Municipal boundaries are with Alvorada do Norte, Buritinópolis, Iaciara, Guarani de Goiás, Mambaí, Simolândia and the state of Bahia.

The capital, Goiânia, lies at a distance of 515 km and connections are made by taking BR-153 / Anápolis / BR-060 / Abadiânia / Alexânia / Sobradinho / Planaltina / (DF) / Formosa / BR-020 / BR-030 / Bezerra / BR-020 / Vila Boa / Alvorada do Norte / GO-108.