This report presents detailed social and economic statistics for the population of the United States below the low-income level¹ in 1966 to 1972, based on the March 1967 to 1973 Current Population Surveys. The data in this report were extracted from a series of tabulations prepared for and previously distributed by the Office of Economic Opportunity (OEO). They supplement the data on the low-income population already published in other Series P-60 reports. Financial support for the preparation of this report was provided by the Office of Assistant Secretary for Planning and Evaluation, Department of Health, Education, and Welfare.

Data are presented here on the low-income status of persons cross-classified by age, family status, race, sex, work experience, occupation, industry, major activity during survey week, income of a specified type, and metropolitan-nonmetropolitan residence. Some of these data have been included in recent Series P-60 reports on the low-income population; however, this is the first time that they are being shown as a historical series. Data are also shown on residence in the 10 Federal regions² and on the characteristics of persons between 100 and 125 percent and 125 and 150 percent of the low-income level; these data have not been published in the P-60 reports. The forthcoming detailed report on the low-income population based on the March 1974 Current Population Survey will include comparable data for the year 1973.

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¹ The low-income threshold for a nonfarm family of four was $4,275 in 1972, $4,137 in 1971, and $3,317 in 1966. See page 48 for a detailed explanation of the low-income definition.
² See page 45 for a listing of the States included in each region.