From the type of house we live in to the region and neighborhood in which we reside, place of residence is another leading socioeconomic factor. For better or worse, neighborhoods often group us socially among people with similar incomes and often similar backgrounds. For instance, at points in history, entire neighborhoods have been established around factories or mills for purposes of housing employees. The city of Gary, Indiana, for example, rose to prosperity around the steel mills on the shores of Lake Michigan. And when the steel industry began to take a turn for the worse in the late 1970s and early '80s, the neighborhood structures of Gary began to crumble, and poverty and crime set in.