-72- proportion of nonwhite families in the lower income classes was considerably higher than among the white families. Approximately 94 percent of the nonwhite families reported incomes of less than $3,000 compared with 64 percent of the white families, The concentration of families in the lower income classes tended to increase with age of the family head (Table 58). Sixty-one percent of the families in the $0 to $999 income class were headed by persons 60 or more years of age. The percentages with incomes of less than $2,000 by age groups were as follows: under 40 years, 32 percent; 40 to 54 years, 45 percent; 55 to 64 years, 65 percent; and, over 64 years, 82 percent. Among the families report- ing incomes in excess of $7,500, almost two-thirds were headed by persons 30 to 49 years of age. Significantly higher proportions of families with one and two members reported incomes of less than $2,000 than of families with three or more mem- bers (Table 59). Ninety-five percent of the one-member families and 75 percent of the two-member families reported incomes below this level. Although they conetituted'oh8y 34 percent of all families, one- and two-member families accounted for 49 percent of the families with incomes below $2,000. None of the one-member families and less than 4 percent of the two-member families reported income in excess of $5,000, Although the proportion of three-member families was considerably less than those of the one- and two-member families, a majority (51 percent) also reported incomes of less than $2,000. Among families with four or more members the proportions in the three lowest income classes ranged from 36 to 47 percent. Among the higher income groups ($5,000 and over), 70 percent of the families were in size groups of 3, 4, and 5 members. Average family size by family income classes varied considerably