Per capita is Latin for “Per head”. Per capita is a Latin prepositional phrase: per (preposition, taking the accusative case, meaning “by, by means of”) and capita (accusative plural of the noun caput, “head”). The phrase thus means “by heads” or “for each head”, i.e. per individual/person. The term is used in a wide variety of social sciences and statistical research contexts, including government statistics, economic indicators, and built environment studies.