The total population of the Czech Republic is 10,625,250 people. The people of the Czech Republic speak the Czech language. The linguistic diversity of the Czech Republic is diverse according to a fractionation scale, which is 0.3233 for the Czech Republic. The average age is around 40.9 years. Life expectancy in the Czech Republic is 78. The female fertility rate in the Czech Republic is 1.5. Around 33% of the population of the Czech Republic is obese. Ethnic diversity is diverse according to a fractionation scale, which is 0.3222 for the Czech Republic. Details of the language, religion, age, gender distribution and advancement of the people of the Czech Republic can be found in the sections below, as well as the section on education in the country.

Population
In the Czech Republic, the population density is 133 people per square kilometer (346 per square mile). Based on these statistics, this country is considered densely populated. The total population of the Czech Republic is 10,625,250 people. The Czech Republic has approximately 405,093 foreign immigrants. Immigrants in the Czech Republic account for 0.2 percent of the total number of immigrants worldwide. Immigrants in the Czech Republic account for 4 percent of the total number of immigrants worldwide. The ethnic diversity of the Czech Republic is 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 the Czech Republic is 0.3222. This means that there is some diversity in the Czech Republic, 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 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 Czech Republic statistics on average age and gender distribution at different ages.

Old
The average age is around 40.9 years. The average age of men is 39.6, the average age of women is 42.3.

Gender
The sex ratio, or number of males per female (estimated at birth), is 1.059. It can be further broken down into the following categories: sex ratio below 15 - 1.06; sex ratio from 15 to 64 - 1.01; sex ratio over 64 - 0.66; Overall sex ratio - 0.95. 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 the Czech Republic is Christianity, whose adherents make up 23.3% 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 the Czech Republic are Islam, Hinduism, Buddhism. The religious diversity of the Czech Republic is quite diverse according to a fractionation scale based on the number of religions in the Czech Republic. The index of religious fractionation in the Czech Republic is 0.6591. This score means that there are several major religions evenly distributed in the Czech Republic.