9% of African ancestry. The population in the Mesopotamian part of the country were 31% of indigenous, 63% of European, and 6.4% of African ancestry. Finally, the population in the Pampa region of the country were 22% of indigenous, 68% of European, and 10% of African ancestry. Finally, in another study published in 2005 involving the North Western provinces of the country, the genetic structure of 1293 individuals from Jujuy, Salta, Tucumán, Santiago del Estero, Catamarca and La Rioja was analysed. This study showed that the Spanish contribution (50%) predominated in Argentina's North West, followed by the American Indian (40%) and African (10%) contributions. According to this study, Argentines from Jujuy were 53% indigenous, 47% European, and 0.1% African ancestry. Argentines from Salta were 41% of indigenous, 56% of European, and 3.1% of African ancestry. Those from Catamarca were 37% of indigenous, 53% of European, and 10% of African ancestry. Those from La Rioja were on average 31% indigenous, 50% European, and 19% African ancestry. The inhabitants of Santiago del Estero were on average 30% indigenous, 46% European, and 24% African ancestry. The inhabitants of Tucumán were on average 24% indigenous, 67% European, and 9% African ancestry. Indigenous groups by population According to the 2010 census there are the following indigenous groups: Indigenous groups by region Northeast This region includes the provinces of Chaco, Corrientes, Entre Ríos, Formosa, Misiones, Santa Fe, and parts of Santiago del Estero Province. Charrúa Lule Mbya-Guaraní Mocoví Pilagá Qom Tonocoté Vilela Wichí Northwest This region includes the provinces of Catamarca, Jujuy, La Rioja, Salta, San Juan, parts of Santiago del Estero Province, and Tucumán. Atacama Avá-Guaraní Chané Chorote Chulupí Diaguita-Calchaquí Chicoana Kolla Ocloya Omaguaca Tapiete Qom Wichí Quechua Central This region includes the Autonomous City of Buenos Aires and the provinces of Buenos Aires, Córdoba, La Pampa, Mendoza, and San Luis. Atacama Avá Guaraní Comechingon Diaguita-Calchaquí Huarpe Kolla Mapuche Het Rankulche South This region includes the provinces of Chubut, Neuquén, Río Negro, Santa Cruz, and Tierra del Fuego. Alacaluf Haush people Mapuche Selknam Puelche Aonikenk Yaghan See also Indigenous peoples of South America Languages of Argentina Argentine people Abipón people Amaicha Calchaquí Capayán Poya people Notes References External links About Argentina: Indigenous Population , Argentine government website Colonial Argentina Indigenous peoples of the Gran Chaco