The simplest form of targeting is geographical, and the following are examples of available set catchments:-

Consumers may also be categorized according to characteristics such as income, social grade or lifestyle. Sophisticated targeting systems utilizing factors such as census data, age, sex, socio-economic status and occupation together with other personal and financial data can be used to identify postcode sectors with a high penetration of a customer profile and these sectors can be targeted precisely.

House Types and Lifestyle Groups

According to what you want to send through the letterbox you may need to establish what kind of people would be interested in what you are selling. One way of doing this is to consider various different types of housing.