| Martin County, FL | |||
| Change | |||
| 1980 | 1990 | 1980-90 | |
| County Population | 64014 | 100900 | 58% |
| % White | 90% | 91% | 1% |
| % Black | 7% | 6% | -1% |
| % Hispanic | 3% | 4% | 1% |
| % Under 18 | 21% | 18% | -3% |
| % Over 65 | 24% | 27% | 3% |
| % Under 6 | 6% | 6% | 0% |
| % Foreign Born | 14% | 7% | -7% |
| Education(% pop over 25) | |||
| % 0-8 years | 15% | 7% | -9% |
| % 9-11 years | 14% | 14% | -1% |
| % Completed H.S. | 36% | 32% | -4% |
| % Some College | 18% | 21% | 3% |
| % Bachelors or Graduate Degree | 16% | 20% | 4% |
| Persons over 25 | 44478 | 76596 | 72% |
| H.S. Dropout Rate | 19% | 17% | -2% |
| Labor Market Structure | |||
| Employed Persons | 24424 | 41198 | 69% |
| % Operators, Nonfarm Laborers & Service | 26% | 23% | -3% |
| % Professional & Technical | 13% | 16% | 3% |
| % Managers & Administrators | 10% | 12% | 2% |
| % Sales Workers | 12% | 16% | 4% |
| % Clerical | 14% | 13% | -1% |
| % Craft Workers | 17% | 14% | -3% |
| % Operators | 8% | 5% | -3% |
| % Nonfarm Laborers | 3% | 3% | 0% |
| % Service Workers | 14% | 15% | 0% |
| % Farm Workers | 8% | 5% | -3% |
| % Males Working less than 26 weeks | 47% | 44% | -3% |
| Males over 16 | 25429 | 41365 | 63% |
| Poverty and Welfare | |||
| % Persons in Impoverished Families | 11% | 8% | -3% |
| % Whites in Poverty | 9% | 6% | -3% |
| % Blacks in Poverty | 34% | 32% | -1% |
| % Hispanics in Poverty | 21% | 30% | 9% |
| % Families Receiving Welfare or PA | 4% | 4% | 0% |
| Income | |||
| Aggregate Income | $430,984,325 | $1,657,388,494 | 285% |
| Number of Families | 19042 | 30129 | 58% |
| Average Family Income | $22,633 | $55,010 | 143% |
| Aggregate Wage and Salary Income | $270,009,490 | $1,068,086,657 | 296% |
| Wage & Salary Households | 15141 | 26399 | 74% |
| Average Wage & Salary Income | $17,833 | $40,459 | 127% |
| Aggregate Self-Employed Income | $95,855,410 | $120,907,512 | 26% |
| Self-Employed Households | 2899 | 5315 | 83% |
| Average Self-Employed Income | $33,065 | $22,748 | -31% |
| Aggregate Earned Income | $308,215,820 | $1,188,994,169 | 286% |
| Earned Income Households | 16222 | 27848 | 72% |
| Average Earned Income | $19,000 | $42,696 | 125% |
| Average Welfare Income per Household | $2,606 | $4,352 | 67% |
| Households Grouped by Income Level | |||
| Income Under $5,000 | 3113 | 1869 | -40% |
| Income of $5,000-9,999 | 4704 | 3079 | -35% |
| Income of $10,000-14,999 | 4466 | 3645 | -18% |
| Income of $15,000-24,999 | 6922 | 7664 | 11% |
| Income of $25,000-49,999 | 5280 | 14902 | 182% |
| Income over $50,000 | 1325 | 11760 | 788% |