"The term demographics refers to particular characteristics of a population. The word is derived from the Greek words for people (demos) and picture (graphy). Examples of demographic characteristics include age, race, gender, ethnicity, religion, income, education, home ownership, sexual orientation, marital status, family size, health and disability status, and psychiatric diagnosis."
Lee, M., & Schuele, C. (2010). Demographics. In Neil J. Salkind (Ed.),
Encyclopedia of Research Design. (pp. 347-348). Thousand Oaks, CA: SAGE Publications, Inc.