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The United States has a racially and ethnically diverse population. [ 1 ] At the federal level, race and ethnicity have been categorized separately. The most recent United States census recognized five racial categories (White, Black, Native American / Alaska Native, Asian, and Native Hawaiian / Other Pacific Islander), as well as people who belong to two or more of the racial categories. [ 2 ...
A population pyramid (age structure diagram) or " age-sex pyramid " is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid when the population is growing. [1] Males are usually shown on the left and females on the right ...
The Han people are the largest ethnic group in mainland China. In 2010, 91.51% of the population were classified as Han (~1.2 billion). [1] Besides the Han Chinese majority, 55 other ethnic (minority) groups are categorized in present-day China, numbering approximately 105 million people (8%), mostly concentrated in the bordering northwest, north, northeast, south and southwest but with some ...
Population composition is the description of population defined by characteristics such as age, race, sex or marital status. These descriptions can be necessary for understanding the social dynamics from historical and comparative research.
A settlement's population size, its geographic area, its status, [clarification needed] and the availability of services can all affect this hierarchy. Position in a settlement hierarchy can also depend on the sphere of influence. This is how far people will travel to use the services in the settlement: if people travel further the town becomes more important and ranks higher in the settlement ...
Population geography relates to variations in the distribution, composition, migration, and growth of populations. Population geography involves demography in a geographical perspective.
Population is the term typically used to refer to the number of people in a single area. Governments conduct a census to quantify the size of a resident population within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and plants, and has specific uses within such fields as ecology and genetics.
This is a collection of lists of organisms by their population. While most of the numbers are estimates, they have been made by the experts in their fields. Species population is a science falling under the purview of population ecology and biogeography.