thumb|right|300px|ethnoreligious groups in 2002 this article is about the demographic features of the population of yemen, including population density, ethnicity, education level, health of the populace, economic status, religious affiliations and other aspects of the population. ==population==  the population of yemen was about 24 million according to june 2011 estimates, with 46% of the population being under 15 years old and 2.7% above 65 years. in 1950, it was 4.3 million.  by 2050, the population is estimated to increase to about 60&nbsp;million.  yemenis are mainly of arab origin. when the former states of north and south yemen were established, most resident minority groups departed. yemen is still a largely tribal society. in the northern, mountainous parts of the country, there are some 400 zaidi tribes.  there are also hereditary caste groups in urban areas such as al-akhdam.{{cite journal |last=lehmann |first=hermann |title=distribu
Demographics_of_Yemen