Income and poverty data in this report for 1985 are the first estimates based entirely on households selected from the 1980 census-based sample design. Estimates by type of residence categories such as metropolitan, nonmetropolitan, farm, and nonfarm, which were omitted from the 1984 report because of the mixed 1970 and 1980 census sampling frame used for the March 1985 CPS, have been resumed in this report. The residence categories reflect metropolitan areas defined as of June 1984. In addition, the March 1986 CPS income supplement was revised to allow for the coding of larger earnings amounts on the questionnaire. A description of this change and its effect on estimates in this report can be found in the section discussing the revised earnings question.