The Five Connecticuts (5CT) are a classification system, originally developed in 2004 by Don Levy, Orlando Rodriguez, and Wayne Villemez, to allow better comparisons across Connecticut's geographical areas.
Using statistical methods, the 169 towns of Connecticut are grouped into one of five categories based on analysis of demographic variables.
The Five Connecticuts (5CT) were updated by Don Levy and DataHaven in 2015, using 2010 census data. The updated (2010) classifications are provided in the attached file on this page.