(1)   The act of populating (causing to live in a place)
"He deplored the population of colonies with convicted criminals"
(2)   (statistics) the entire aggregation of items from which samples can be drawn
"It is an estimate of the mean of the population"
(3)   A group of organisms of the same species populating a given area
"They hired hunters to keep down the deer population"
(4)   The people who inhabit a territory or state
"The population seemed to be well fed and clothed"
(5)   The number of inhabitants (either the total number or the number of a particular race or class) in a given place (country or city etc.)
"People come and go, but the population of this town has remained approximately constant for the past decade"
"The African-American population of Salt Lake City has been increasing"


From late populatio "a people, multitude," as if a noun of action from classical Latin populus "people"


  1. The people living within a political or geographical boundary
    The population of New Jersey will not stand for this!
  2. The people living in a single place.
    The population of some smalltowns is numbered in under four digits
  3. A collection of organisms of a particular species, sharing a particular characteristic of interest, most often that of living in a given area
    A seasonal migration annually changes the populations in two or more biotopes drastically, many twice in opposite senses
  4. A count of the number of residents within a political or geographical boundary such as a town, a nation or the world
    The town’s population is only 243.
  5. A group of units (persons, objects, or other items) enumerated in a census or from which a sample is drawn
    "...it is possible it [the Anglo-Saxon race] might stand second to the Scandinavian countries [in average height] if a fair sample of their population were obtained." Francis Galton et al. (1883). Final Report of the Anthropometric Committee, Report of the British Association for the Advancement of Science, p. 269.