The place where now stands the city of Rio da Conceição was known as the Rio das Éguas and its first inhabitants were Indians Xerentes. By 1915, Antonio Pedro de Carvalho came from Formosa do Rio Preto, State of Bahia, with his wife Joana. Mr. Antonio Pedro was cowboy, cattle bought in the wilderness and brought general merchandise, which traded for cattle. Their children were getting married and there, thus increasing the population of the place. Another pioneer, Mr. Otilio Alves de Carvalho first came to install the home business and soon Mr. Florin Macedo also established commercially, contributing to the consolidation of a town to which he named Rio da Conceição, belonging to the municipality Natividade. When Almas became a municipality, that in1958, Rio da Conceição was incorporated into its territory. After having belonged to two municipalities, the population of Rio da Conceição met and made a petition asking the governor of Goiás for Dianópolis incorporated the village of Rio da Conceição. This petition was granted, and Rio da Conceição was in charge of Dianópolis. In 1991, in accordance with Law No. 251, was created the municipality of Rio da Conception, installed two years later. The official area of Rio da Conceição is currently 771km² and the 2010 census, listed with 1.714 inhabitants, with a population growth of around 32.25% over the census of 2000.
