Population composition or demographic structure: Refers to the physical, sociocultural and economic attributes of the population such as age and sex, place of residence, language, religion, martial status, literacy, etc. Significance: The characteristics of population composition are measurable and help in distinguishing one group from another.
Two Characteristics of a population are :
1. Rural and Urban Composition: This is on the basis of where a person resides. Rural refers to villages and urban refers to cities and towns.
2. Age and sex Composition : It refers to the percentage of people in different age groups in a given population and sex ratio (number of females per 1000 males in a population).