- By age: Social Security accounts for at least half of household income for 51.8% of people aged 65 or older, including 61.4% of people aged 80 or older.
- By sex: Social Security accounts for at least half of household income for 55.2% of women aged 65 or older and 47.5% of men in the age group.
- By race and Hispanic origin: Social Security accounts for at least half of household income for 51.5% of Hispanics, 51.8% of non-Hispanic Whites, and 56.9% of Blacks aged 65 or older.
- By educational attainment: Social Security accounts for at least half of household income for 57.9% of high school graduates aged 65 or older. Among college graduates in the age group, a smaller 34.9% depend on Social Security for at least half of household income.
- By income quintile: Social Security accounts for at least half of household income for 86.6% of people aged 65 or older in the lowest income quintile, 82.3% of those in the second income quintile, and 62.7% of those in the third income quintile. Among those in the fourth income quintile, the figure is a smaller 24.8%. Among those in the highest income quintile, just 2.2% depend on Social Security for at least half of their household income.
Source: Social Security Administration, Social Security Bulletin, The Importance of Social Security Benefits to the Income of the Aged Population