The total population of Lesotho is 2,263,010 people. The people of Lesotho speak Southern Sotho and English. The linguistic diversity of Lesotho is diverse according to a fractionation scale, which stands at 0.2543 for Lesotho. The average age is around 23.6 years. Life expectancy in Lesotho is 50 years. The female fertility rate in Lesotho is 3.3. About 15% of Lesotho's population is obese. Ethnic diversity is diverse according to a fractionation scale, which stands at 0.255 for Lesotho. Details of the language, religion, age, gender distribution and advancement of the people of Lesotho can be found in the sections below, as well as the section on education in the country.

Population
In Lesotho, the population density is 68 people per square kilometer (177 per sq mi). Based on these statistics, this country is considered sparsely populated. The total population of Lesotho is 2,263,010 people. Lesotho has approximately 3,095 foreign immigrants. Immigrants in Lesotho account for 0.1 percent of the total number of immigrants worldwide. Immigrants in Lesotho account for 0.1 percent of the total number of immigrants worldwide. Ethnic diversity Lesotho is diverse according to a fractionation scale based on ethnicity. Ethnic fractionation (EF) is concerned with the number, size, socioeconomic distribution, and geographic location of different cultural groups, usually within a state or other defined area. Specific cultural characteristics can refer to language, skin color, religion, ethnicity, customs and traditions, history, or other distinctive criteria, alone or in combination. These characteristics are often used for social exclusion and power monopolization. The index of ethnic fractionation in Lesotho is 0.255. This means that there is some diversity in Lesotho, although all people can still be divided into a relatively small number of major ethnic groups. EF is usually measured as 1 minus the Herfindahl concentration index of ethnolinguistic group proportions, which reflects the probability that two randomly selected individuals from the population belong to different groups. The theoretical maximum of EF of 1 means that each person belongs to a different group. Below are statistics for Lesotho on average age and gender distribution at different ages.

Old
The average age is around 23.6 years. The average age of men is 23.6 years, while the average age of women is 23.6 years.

Gender
The sex ratio, or number of males per female (estimated at birth), is 1.03. It can be further broken down into the following categories: sex ratio under 15 – 1.01; sex ratio from 15 to 64 - 0.96; sex ratio over 64 - 0.66; Overall sex ratio - 0.96. The overall sex ratio differs from the sex ratio estimated at birth. This is because some newborns are included in the estimated sex ratio at birth, but die within the first few weeks of life and are not included in the overall sex ratio.

Religion
The majority religion of Lesotho is Christianity, whose adherents make up 96.8% of all believers in the country. Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus Christ as set forth in the New Testament. Christianity is the largest religion in the world with over 2.4 billion followers known as Christians. Christians believe that Jesus is the Son of God and the Savior of mankind, whose coming as Christ or Messiah was prophesied in the Old Testament. Religious diversity Lesotho is quite diverse according to a fractionation scale based on the number of religions in Lesotho. The index of religious fractionalization in Lesotho is 0.7211. This value means that there are several major religions in Lesotho, evenly distributed.