Picos is a municipality located in the south-central region of the state of Piauí, within the Northeast region of Brazil. It serves as the third-largest city in the state and had a population of approximately 78,431 as of 2020.
The city is recognized as the most economically developed municipality in its region. Due to its geographical location and financial prosperity, Picos functions as a significant commercial hub, particularly for the trade of fuel and honey.