The total population of Fiji is 912,241 people. The people of Fiji speak English, Fijian Hindi and Fijian languages. The linguistic diversity of Fiji is quite diverse according to a fractionation scale, which is 0.5479 for Fiji. The average age is around 27.9 years. Life expectancy in Fiji is 69 years. The female fertility rate in Fiji is 3.1. About 31% of Fiji's population is obese. Ethnic diversity is quite diverse according to a fractionation scale, which stands at 0.5479 for Fiji. Details of the language, religion, age, gender distribution and advancement of the people of Fiji can be found in the sections below, as well as the section on education in the country.

Population
In Fiji, the population density is 47 people per square kilometer (122 per square mile). Based on these statistics, this country is considered sparsely populated. The total population of Fiji is 912,241 people. Fiji has about 13,751 foreign immigrants. Immigrants in Fiji account for 0.1 percent of the total number of immigrants worldwide. Immigrants in Fiji account for 2.5 percent of the total number of immigrants worldwide. The ethnic diversity of Fiji is quite 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 Fiji is 0.5479. This means that there is a relatively large number of unique ethnic groups in Fiji. 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 Fiji on average age and gender distribution at different ages.

Old
The average age is around 27.9 years. The average age of men is 27.7 years, while the average age of women is 28.1 years.

Gender
The sex ratio, or number of males per female (estimated at birth), is 1.05. It can be further broken down into the following categories: sex ratio under 15 – 1.04; sex ratio from 15 to 64 - 1; sex ratio over 64 - 0.81; Overall sex ratio - 1. 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 Fiji is Christianity, whose adherents make up 64.4% 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. In addition to Christianity, there are several other religions in the country. Other religions in Fiji include Islam, Hinduism, Buddhism, folk religions and Judaism. Fiji's religious diversity is quite diverse according to a fractionation scale based on the number of religions in Fiji. The index of religious fractionalization in Fiji is 0.5682. This value means that there are several major religions in Fiji, evenly distributed.