In all cases where occupied housing units, households, or families are classified by race, the race of the householder, i.e., the person in column 1, is used (See: Household Relationship for the definition of Householder). This item was determined on a complete-count basis.
Since some households include persons of more than one race, there may be minor differences in counts by race between (1) tabulations of "families by family size" or "households by persons in unit" where all persons regardless of their race are tallied according to tile race Of householder and (2) tabulations of "persons in families" or "persons in households" where all persons are counted according to their own race.
Prior to 1980, the concept of race of household head" was used instead of race of householder. This change should not substantively affect the comparability of these data.