Acaponeta is both a municipality and a town in the northern part of the Mexican state of Nayarit. The town is located at the geographical coordinates of 22°29′47″N 105°21′34″W / 22.49639°N 105.35944°W. The population of the municipality was 34,665 in the 2005 census, living in a total area of 1,667.7 km. The population of the municipal seat was 18…Acaponeta is both a municipality and a town in the northern part of the Mexican state of Nayarit. The town is located at the geographical coordinates of 22°29′47″N 105°21′34″W / 22.49639°N 105.35944°W. The population of the municipality was 34,665 in the 2005 census, living in a total area of 1,667.7 km. The population of the municipal seat was 18,066, the fifth-largest community in the state. The Acaponeta River flows through the town.