Demographics
Peru is a multiethnic country formed by different groups over five centuries. Amerindians inhabited Peruvian territory for several millennia before the Spanish Conquest of the 16th century; according to historian Noble David Cook their population decreased from nearly 5–9 million in the 1520s to around 600,000 in 1620 mainly because of infectious diseases. Spaniards and Africans arrived in large numbers under colonial rule, mixing widely with each other and indigenous peoples. Gradual European immigration from Italy, Spain, France, Britain, and Germany followed independence.
Chinese arrived in the 1850s, replacing slave workers, and have since greatly influenced Peruvian society. The majority of the people in Peru are Amerindians, mostly Quechua and Aymara, or mestizos who are of mixed white and Amerindian ancestry. There are 15 uncontacted Amerindian tribes in Peru. The last Peruvian census that attempted to classify persons according to ethnicity was in 1940, when 53% of the population was found to be white or mestizo and 46% was found to be Amerindian.
With about 29.5 million inhabitants, Peru is the fifth most populous country in South America. Its demographic growth rate declined from 2.6% to 1.6% between 1950 and 2000; population is expected to reach approximately 42 million in 2050. As of 2007, 75.9% lived in urban areas and 24.1% in rural areas. Major cities include Lima (home to over 8 million people), Arequipa, Trujillo, Chiclayo, Piura, Iquitos, Cusco, Chimbote, and Huancayo; all reported more than 250,000 inhabitants in the 2007 census.
Spanish, the first language of 83.9% of Peruvians aged five and older in 2007, is the primary language of the country. It coexists with several indigenous languages, the most common of which is Quechua, spoken by 13.2% of the population. Other native and foreign languages were spoken at that time by 2.7% and 0.1% of Peruvians, respectively.
In the 2007 census, 81.3% of the population over 12 years old described themselves as Catholic, 12.5% as Evangelical, 3.3% as of other denominations, and 2.9% as non-religious. Literacy was estimated at 92.9% in 2007; this rate is lower in rural areas (80.3%) than in urban areas (96.3%). Primary and secondary education are compulsory and free in public schools.
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