Based on the current definition for farm population (all persons living in rural territory or places which in the reporting year had, or normally would have had, sales of agricultural products of $1,000 or more), an average of 6,051,000 persons, or 2.7% of the total population lived on farms in the United States in 1980, a drop of 190,000 below the 1979 estimate. Whites constituted 94.4%, Blacks 4%, and persons of Spanish origin 1.9% of all farm residents. The farm population, with a median age of 35.5 years, had a lower proportion of young adults (20-34 years) and a higher proportion of persons 35-64 years old and elderly persons than the nonfarm population. The fertility of farm women continued to be higher than that of nonfarm women. About 45% of the farm population lived in the North Central Region. Of all farm residents 14 years old and over, 64% were in the labor force or were seeking work. Only 47% of the average 3,500,000 persons employed in agriculture lived on farms. About three-fifths of the 1,700,000 farm residents employed in agriculture were self-employed. Median income of farm families was $16,357 in 1979, substantially lower than the $19,754 for nonfarm families. (NEC)