The total population of Peru is 32,551,815 people. People in Peru speak the Spanish, Aymara, and Quechua languages. The linguistic diversity of Peru is diverse according to a fractionalization scale which for Peru is 0.3358. The median age is approximately 27 years. Life expectancy in Peru is 77. The female fertility rate in Peru is 2.5. Around 16% of the population of Peru are obese. The ethnic diversity is rather diverse according to a fractionalization scale which for Peru is 0.6566. To find out specifics of language, religion, age, gender distribution, and advancement of people in Peru see the sections below, as well as visit the section concerning the education in the country.

Population
In Peru, the population density is 23.7 people per square kilometer (62 per square mile). Because of this statistic, this country is considered to be sparsely populated. The total population of Peru is 32,551,815 people. Peru has approximately 104,919 foreign immigrants. Immigrants in Peru represent 0.1 percent of the total number of immigrants in the world. Immigrants in Peru represent 0.3 percent of the total number of immigrants in the world. The ethnic diversity of Peru is rather diverse according to a fractionalization scale based on ethnicity. Ethnic fractionalization (EF) deals with the number, sizes, socioeconomic distribution, and geographical location of distinct cultural groups, usually in a state or some otherwise delineated territory. Specific cultural features might refer to language, skin color, religion, ethnicity, customs and traditions, history, or other distinctive criteria, alone or in combination. Frequently, these features are used for social exclusion and the monopolization of power. The index of ethnic fractionalization in Peru is 0.6566. This means that there is a relatively high number of unique ethnic groups in Peru. EF is usually measured as 1 minus the Herfindahl concentration index of ethnolinguistic group shares, which reproduces the probability that two randomly drawn individuals from the population belong to different groups. The theoretical maximum of EF of 1 means that each person belongs to a different group. Read below for statistics of Peru on median age and gender distribution at various ages.

Age
The median age is approximately 27 years. The median age for men is 26.3, while the median age for women is 27.7.

Gender
The sex ratio, or the number of males for each female (estimated at birth), is 1.05. It can be further divided into the following categories: sex ratio under 15 - 1.04; sex ratio from 15 to 64 - 1.01; sex ratio over 64 - 0.89; total sex ratio - 1.01. Total sex ratio is different from sex ratio estimated at birth. This is due to the fact that some newborns are considered in the sex ratio estimated at birth but pass away within the first weeks of their life and are not included in the total sex ratio.

Religion
The majority religion of Peru is Christianity, the followers of which comprise 93% of all religious believers in the country. Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus Christ as presented in the New Testament. Christianity is the world's largest religion, with over 2.4 billion adherents, known as Christians. Christians believe that Jesus is the Son of God and the savior of humanity whose coming as Christ or the Messiah was prophesied in the Old Testament. Besides Christianity, there are several other religions present within the country. Other religions in Peru are Hinduism, Buddhism, folk religions. The religious diversity of Peru is vaguely diverse according to a fractionalization scale based on the number of religions in Peru. The index of religious fractionalization in Peru is 0.1988. This score means that within the country there is one major with a few other minor beliefs.