Habit is an unincorporated community located in Daviess County, Kentucky, United States. A post office was established in the commu…Habit is an unincorporated community located in Daviess County, Kentucky, United States. A post office was established in the community in 1884, and named for the local English-American blacksmith Frederick Habitt. Portions of the Ann Patchett novel The Patron Saint of Liars take place in the town.