The total population of Palau is 21,964 people. People in Palau speak the Palauan, and English languages. The linguistic diversity of Palau is diverse according to a fractionalization scale which for Palau is 0.3157. The median age is approximately 33 years. Life expectancy in Palau is 73. The female fertility rate in Palau is 1.7. Around 49% of the population of Palau are obese. The ethnic diversity is diverse according to a fractionalization scale which for Palau is 0.4312. To find out specifics of language, religion, age, gender distribution, and advancement of people in Palau see the sections below, as well as visit the section concerning the education in the country.

Population
In Palau, the population density is 43 people per square kilometer (112 per square mile). Because of this statistic, this country is considered to be sparsely populated. The total population of Palau is 21,964 people. Palau has approximately 5,664 foreign immigrants. Immigrants in Palau represent 0.1 percent of the total number of immigrants in the world. Immigrants in Palau represent 27.8 percent of the total number of immigrants in the world. The ethnic diversity of Palau is 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 Palau is 0.4312. This means that a certain diversity is present in Palau, 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 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 Palau on median age and gender distribution at various ages.

Age
The median age is approximately 33 years. The median age for men is 32.5, while the median age for women is 34.2.

Gender
The sex ratio, or the number of males for each female (estimated at birth), is 1.06. It can be further divided into the following categories: sex ratio under 15 - 1.06; sex ratio from 15 to 64 - 1.26; sex ratio over 64 - 0.45; total sex ratio - 1.14. 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 Palau is Christianity, the followers of which comprise 86.7% 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 some followers of folk religions in Palau. The religious diversity of Palau is rather diverse according to a fractionalization scale based on the number of religions in Palau. The index of religious fractionalization in Palau is 0.7147. This score means that there are several major religions distributed evenly within Palau.