In 2007 and 2009, the Current Population Survey did not ask about computer ownership. The estimates provided for those years are based on the ratio of computer ownership to Internet access in 2003 and 2010, and were computed by the Census Bureau.

The Current Population Survey defines a household as all the people who occupy a housing unit.  A house, apartment, a single room, or a group of rooms is regarded as a housing unit when it is occupied or intended for occupancy as separate living quarters; that is, when the occupants do not live with any other persons in the structure and there is direct access from the outside or through a common hall.