Administrative divisions of Peru nation's capital, is located in this province.) Callao also is its own region, which contains only one province, the Constitutional Province of Callao. Administrative divisions of Peru The administrative divisions of Peru have changed from time to time, since the nation gained independence from Spain in the early 19th century. The old territorial subdivisions have split or merged due to several reasons, the most common ones being the need for decentralization, and population increase, especially in Lima. Peru was divided into 24 departments ("departamentos"; singular: "departamento") until the creation of the regions in 2002. These regions are governed by Regional
Rioja, Peru boats, canoes and rafts use the Mayo, Tonchima and Negro rivers for small cargo. Rioja, Peru Rioja is the capital of Rioja Province in the San Martín Region in northern Peru. It is situated to the west of Moyobamba. There are 24,263 inhabitants according to the 2007 census. The town is 848 metres above sea level and has a semi-humid subtropical climate. During the period of the Incas, the Rioja Province was inhabited by two tribes, the Uquihuas and the Chepenes. At the end of the 16th century, one of the first Catholic missionaries arrived at Uquihua. Rioja was founded