The classification of all housing units as either occupied or vacant.
The classification of a housing unit with a person or persons living in it as a usual residence when enumerated or only temporarily absent, for example, on vacation. A household consists of all the persons who occupy a housing unit. Therefore, counts of households and occupied housing units should match; although complete counts may differ slightly from sample data.
The classification of a housing unit with no one living in it the time of enumeration, unless its occupants are only temporarily absent. If, at the time of enumeration, the unit is temporarily occupied entirely be persons who have a usual residence elsewhere, it is also classified as vacant.
Similar data have been collected since 1940.
See also: "Vacancy Status."