The total population of Belgium is 11,498,519 people. The people of Belgium speak Dutch, German and French. The linguistic diversity of Belgium is quite diverse according to a fractionation scale, which is 0.5409 for Belgium. The average age is around 43.1 years. Life expectancy in Belgium is 80. The female birth rate in Belgium is 1.8. About 22% of the Belgian population is obese. Ethnic diversity is quite diverse according to a fractionation scale, which for Belgium is 0.5554. Details on the language, religion, age, gender distribution and advancement of the people of Belgium can be found in the sections below, as well as the section on education in the country.

Population
In Belgium, the population density is 368 people per square kilometer (957 per square mile). Based on these statistics, this country is considered densely populated. The total population of Belgium is 11,498,519 people. Belgium has approximately 1,387,940 foreign immigrants. Immigrants in Belgium make up 0.5 percent of the total number of immigrants worldwide. Immigrants in Belgium account for 10.4 percent of the total number of immigrants worldwide. The ethnic diversity of Belgium is quite diverse according to a fractionation scale based on ethnicity. 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 Belgium is 0.5554. This means that there is a relatively high number of unique ethnic groups in Belgium. 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 the Belgian statistics on the average age and gender distribution at different ages.

Age
The average age is around 43.1 years. The average age for men is 41.7 and the average age for women is 44.4.

Gender
The sex ratio, or number of males per female (estimated at birth), is 1.045. It can be further broken down into the following categories: sex ratio below 15 - 1.04; sex ratio from 15 to 64 - 1.02; sex ratio over 64 - 0.71; 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 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 in Belgium is Christianity, whose adherents make up 64.2% 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 Belgium are Islam, Buddhism, folk religions, Judaism. Belgium's religious diversity is vaguely diverse according to a fractionation scale based on the number of religions in Belgium. The index of religious fractionation in Belgium is 0.2127. This score means that within the country there is a major belief with a few other subordinate beliefs.