NEWTON, MASSACHUSETTS (USA) – Household size distributions are critical inputs to many business analyses but may not be correctly derived from U.S. Census data. The Census counts people at their geographic locations, and when several unrelated people live at the same address they are reported as one household with a number of residents. A confusing array of data is reported. In both the Census SF1 2010 file and in 2017 ACS, the following tabulations are provided down to the Census tract level:
There is also extensive information on people residing in group quarters in the 2010 Census, which has the tabulations below:
Using this information, Maptitude 2019 includes a corrected data set of household size distributions for Census Tracts and Block Groups to account for the under-representation of one-person households in the Census data.