This advance report presents results of the current population survey (March 1984) on households, families, marital status, and living arrangements. Tables give information on (1) one-year changes in households and families, by type (1980-1984); (2) households by type (1970, 1980, 1984); (3) average population per household and family (1940-1984); (4) characteristics of unmarried-couple households (1970, 1980, 1984); (5) persons age 15 years and over and percent never married, by age and sex (1970, 1980, 1984); and (6) household and family units, by type (1940-1984). (AS)