The Census Bureau has computed "Hard-to-Count" scores for each census tract, based upon a variety of social and economic factors that have been correlated with low mail-response rates in previous censuses.
"Hard-to-Count" Scores for Michigan Census Tracts
Michigan Census Tracts with "Hard-to-Count" Scores Above 60
Components of "Hard-to-Count" Scores, Pt. 1: Housing and Household Characteristics
Components of "Hard-to-Count" Scores, Pt. 2: Social and Economic Characteristics
Components of "Hard-to-Count" Scores, Pt. 3: Race and Hispanic Origin
Components of "Hard-to-Count" Scores, Pt. 4: Other Demographic Characteristics