ACORN

A Classification Of Residential Neighborhoods. Directory that groups the UK residential areas into 39 types, (and the US residential areas into 36 types) according to age, composition, facilities, household size, income, marital status, mode of travel to work, occupation, ownership of car, ownership of home, etc. It's based on the concept that areas with similar demographic and social characteristics tend to share common life styles and patterns of buying behavior. Designed mainly for marketing and promotional campaigns by the UK researcher Richard Webber, and first published in 1977.