demographic
/ˌdɛməˈgræfɪk/
noun
plural -ics
demographics [plural] :the qualities (such as age, sex, and income) of a specific group of people
[count] :a group of people that has a particular set of qualities - usually singular
adjective
of or relating to the study of changes that occur in large groups of people over a period of time :of or relating to demography