Parnaiba is a locality located 1572.66 km south-southwest from Brasilia in Piaui, Brazil. The population of Parnaiba is 153,482 people. Caxias, Itapipoca, Paco do Lumiar are located close to Parnaiba. You can find Parnaiba on any map using the following decimal coordinates: -2.958 (latitude), -41.7531 (longitude).