This indicator reports on a living wage calculated for each county using an online tool developed by the Living Wage Project. A living wage is the hourly pay rate that an individual must earn to support a family working full time, year-round (40 hours per week for 52 weeks a year). It is based on estimates of the cost of living in each county using a set of typical expenses for the location, including food, child care, health care, housing, transportation, other necessities, and taxes.
The category "2 adults 2 children" reflects the living wage when both adults in the household are working. How the model handles family composition was updated in 2014 which may account for the decrease since 2010 in this category. The technical notes for 2014 can be found here.
MIT Living Wage Calculator