Where does this information come from?

Metrostudy has developed the scoring methodology. The scores themselves are based on a number of sources. Most of the consumer data come from multiple third-party sources that have been vetted and assembled by Metrostudy. To describe the types of households that make up each market, Metrostudy used Neustar’s ElementOne segmentation model to divide all U.S. households into nine unique consumer segments. Of those, three segments have been identified as being prime targets for propane marketers: Transitional, Entry Level, and Family Life households. Analysis of consumer trends and behaviors, such as how local markets purchase media, comes from Scarborough, a Nielsen service.