The Census Bureau has also defined a census-designated place (CDP) with the same name that corresponds to the most densely populated area, however local understanding of the hamlet may differ somewhat from the census definition.

Under census definitions, a household can be a single person or a family residing under the same roof.

The area defined by the Chukyo Area Person-Trip Survey, a study of commuter movement, is slightly different from the census definition.

Below are some census definitions of white, which may differ from the social definition of white within the same country.

The census definition of the area may not precisely correspond to local understanding of the area with the same name.

Critiques of the measure have been leveled against both the federal definition of poverty as well as the census definition of concentrated poverty by the 40% threshold.