Marcolino Barreira and his family in 1809, reached the place where today is found stuck to the town of Barreiras do Piauí. Coming from Oeiras, established a cattle ranch near the Riacho dos Meios. The cattle trade has developed in the village, was named "Fazenda Meios" and attracted other families who settled there. In 1888 he built the Chapel of São Francisco de Assis and celebrated the first Mass in the same year by priest Guilherme. The ceremony marked the beginning of the nucleus, which, became the town Meios. Bias Barreiras de Macedo, a native of Pueblo and the Mayor of Gilbués, promoted his elevation to the municipal headquarters in 1962. Was named Barreiras do Piauí, in honor of the family resident in the first place. The installation of the city occurred in the same year. The official area of the municipality of Barreiras do Piauí is currently 2.029km² and in the 2010 census, listed with 3.234 inhabitants, with a population growth of around 6.42% compared to the census of 2000.
