The total population of Jamaica is 2,898,677 people. People in Jamaica speak the Jamaican English language. The linguistic diversity of Jamaica is vaguely diverse according to a fractionalization scale which for Jamaica is 0.1098. The median age is approximately 24.9 years. Life expectancy in Jamaica is 74. The female fertility rate in Jamaica is 2.3. Around 24% of the population of Jamaica are obese. The ethnic diversity is diverse according to a fractionalization scale which for Jamaica is 0.4129. To find out specifics of language, religion, age, gender distribution, and advancement of people in Jamaica see the sections below, as well as visit the section concerning the education in the country.

Population
In Jamaica, the population density is 247 people per square kilometer (643 per square mile). Because of this statistic, this country is considered to be densely populated. The total population of Jamaica is 2,898,677 people. Jamaica has approximately 23,167 foreign immigrants. Immigrants in Jamaica represent 0.1 percent of the total number of immigrants in the world. Immigrants in Jamaica represent 1.3 percent of the total number of immigrants in the world. The ethnic diversity of Jamaica 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 Jamaica is 0.4129. This means that a certain diversity is present in Jamaica, 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 Jamaica on median age and gender distribution at various ages.

Age
The median age is approximately 24.9 years. The median age for men is 24.4, while the median age for women is 25.4.

Gender
The sex ratio, or the number of males for each female (estimated at birth), is 1.05. It can be further divided into the following categories: sex ratio under 15 - 1.03; sex ratio from 15 to 64 - 0.97; sex ratio over 64 - 0.81; total sex ratio - 0.98. 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 Jamaica is Christianity, the followers of which comprise 77.2% 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 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 several other religions present within the country. Other religions in Jamaica are Hinduism, Buddhism. The religious diversity of Jamaica is rather diverse according to a fractionalization scale based on the number of religions in Jamaica. The index of religious fractionalization in Jamaica is 0.616. This score means that there are several major religions distributed evenly within Jamaica.

General development
Jamaica is considered to be a developing nation. The developmental stage of a nation is determined by a number of factors including, but not limited to, economic prosperity, life expectancy, income equality, and quality of life. As a developing nation, Jamaica may not be able to offer consistent social services to its citizens. These social services may include things like public education, reliable healthcare, and law enforcement. Citizens of developing nations may have lower life expectancies than citizens of developed nations. In Jamaica, 46.5 in every 100 people use internet. Jamaica has a Human Development Index (HDI) of 0.715. Jamaica has an upper medium HDI score. This indicates that the majority of citizens will be able to attain a desirable life, though some citizens will not be able to achieve high living standards. The migration rate in Jamaica is -4.66%. In Jamaica, 15.9% of the population lives below the poverty line. The percentage of citizens living below the poverty line in Jamaica is fairly high, but is not reason for complete concern with regard to investments.