The report presents data on selected social, economic, and demographic characteristics of women of Spanish origin in the United States. Derived from the population reports of the U.S. Census Bureau and the March 1973 Manpower Report of the President, the statistical data pertain to age, residence, marital status, heads of families and households, children in families and households headed by women, educational attainment, school enrollment, employment and unemployment, occupations of employed women, work experience of married women and women heads of families, working mothers, income of persons, family income, and low-income level. In March 1974, there were 5.5 million women of Spanish origin in the United States. Of these, 58% were of Mexican origin, 15.1% of Puerto Rican origin, 6.6% of Cuban origin, 6.6% of Central and South American origin, and 13.7% of other Spanish origin. More than half of these women were between the ages of 18 and 64 years. Mexican women had the lowest median age (19.7 years); women of Cuban, Central or South American, and Spanish origin other than Mexican or Puerto Rican had the highest (24.3 years). Median age of Puerto Rican women was 20.4 years. Married women (husband present) accounted for 56% of the 3.6 million Spanish-origin women 14 years of age and over. Of the remaining women, 27% were single, 7% were married (husband absent), 6% were widowed, and 4% were divorced. About 51% of families headed by women had incomes below the low-income level in 1973. (NQ)