Number::methods    Births::people    Social::journal    Study::rates    Women::world    United::deaths

{{#invoke:Hatnote|hatnote}} {{#invoke:Sidebar|sidebar | bodyclass = hlist | titleclass = navbox-title | title = Sociology | image = Social Network Diagram (segment).svg | headingclass = navbox-abovebelow | contentstyle = padding-top:0.2em;

| content1 =

| heading2 = Theory | content2 =

| heading3 = Methods | content3 =

| heading4 = Subfields | content4 =

| heading5 = Browse | content5 =

}} Demography is the statistical study of populations, including of human beings. As a very general science, it can analyze any kind of dynamic living population, i.e., one that changes over time or space (see population dynamics). Demography encompasses the study of the size, structure, and distribution of these populations, and spatial and/or temporal changes in them in response to time, birth, migration, ageing, and death. Based on the demographic research of the earth, earth’s population up to the year 2050 and 2100 can be estimated by the demographers.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Demo- from Ancient Greek δῆμος dēmos, means "the people" and -graphy from γράφω graphō, implies writing, description or measurement.<ref>See for etymology (origins) of demography.</ref> Demographics are quantifiable characteristics of a given population.

Demographic analysis can cover whole societies, or groups defined by criteria such as education, nationality, religion and ethnicity. Educational institutions usually treat demography as a field of sociology, though there are a number of independent demography departments.<ref name="ucb">UC Berkeley Demography department website.</ref>

Formal demography limits its object of study to the measurement of population processes, while the broader field of social demography or population studies also analyzes the relationships between economic, social, cultural and biological processes influencing a population.<ref>Andrew Hinde Demographic Methods Ch. 1 ISBN 0-340-71892-7</ref>

Demography sections
Intro  History  Methods   Common Rates and Ratios  Basic equation  See also  Notes  Further reading   External links   

PREVIOUS: IntroNEXT: History