Location of Rioja in the San Martín region
| 2,535.04 km2 (978.78 sq mi)|
|Population (as of the 2005 Census)|
92.222 (2002 estimate)
36.4 /km2 (94 /sq mi)
The province is bordered to the north and east by the Moyobamba Province and to the south and west by the Amazonas Region. The province has a population of 90,000 inhabitants. Its capital is Rioja. The area of the province is 2,535.04 square kilometers (978.78 sq mi).
The province is divided into nine districts.
- Awajun (Bajo Naranjillo)
- Elias Soplin Vargas (Segunda Jerusalén)
- Nueva Cajamarca (Nueva Cajamarca)
- Pardo Miguel (Naranjos)
- Posic (Posic)
- Rioja (Rioja)
- San Fernando (San Fernando)
- Yorongos (Yorongos)
- Yuracyacu (Yuracyacu)