The total population of American Samoa is 55,679 people. The people of American Samoa speak English and Samoan. The linguistic diversity of American Samoa is vaguely diverse according to a fractionation scale, which is 0.1733 for American Samoa. The average age is around 28.3 years. Life expectancy in American Samoa is 69.3. The female fertility rate in American Samoa is 2.92. Around 75% of American Samoa's population is obese. Ethnic diversity is nearly uniform according to a fractionation scale, which is 0 for American Samoa. Details of the language, religion, age, gender distribution, and advancement of the people of American Samoa can be found in the sections below, as well as the section on education in the country.

Population
In American Samoa, the population density is 326 people per square kilometer (848 per sq mi). Based on these statistics, this country is considered densely populated. The total population of American Samoa is 55,679 people. American Samoa has approximately 4,750 foreign immigrants. Immigrants in American Samoa account for 0.1 percent of the total number of immigrants worldwide. Immigrants in American Samoa account for 71.2 percent of the total number of immigrants worldwide. The ethnic diversity of American Samoa is nearly uniform according to an ethnicity-based fractionation scale. Ethnic Fractionation (EF) deals with the number, size, socioeconomic distribution, and geographic location of diverse cultural groups, usually within a state or some other demarcated 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 American Samoa is 0. This means that the people living in American Samoa are somewhat fractionated. EF is usually measured as 1 minus the Herfindahl concentration index of ethnolinguistic group proportions, which reflects 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 American Samoa statistics on average age and gender distribution at different ages.

Age
The average age is around 28.3 years. The average age for men is 28.8 and the average age for women is 27.8.

Gender
The sex ratio, or number of males per female (estimated at birth), is 1.06. It can be further broken down into the following categories: sex ratio below 15 - 1.04; sex ratio from 15 to 64 - 1.03; sex ratio over 64 - 0.88; Overall sex ratio - 1.02. The overall sex ratio differs from the sex ratio estimated at birth. This is because some newborns are included in the sex ratio estimated 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 American Samoa is Christianity, whose adherents make up 98.3% 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 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. Besides Christianity, there are several other religions in the country. Other religions in American Samoa are Buddhism, folk religions. The religious diversity of American Samoa is quite diverse according to a fractionation scale based on the number of religions in American Samoa. The index of religious fractionalization in American Samoa is 0.6395. This score means there are several major religions evenly distributed in American Samoa.