| Sioux County, IA | |||
| Change | |||
| 1980 | 1990 | 1980-90 | |
| County Population | 30,813 | 29,903 | -3% |
| %White | 99% | 99% | 0% |
| %Black | 0% | 0% | 0% |
| %Hispanic | 0% | 0% | 0% |
| %Under 18 | 31% | 30% | -1% |
| %65 years and over | 13% | 15% | 2% |
| %Under 6 | 11% | 9% | -2% |
| %Foreign Born | 0% | 2% | 2% |
| Education (% pop over 25) | |||
| % 0-8 years | 32% | 20% | -12% |
| % 9-11 years | 9% | 8% | -1% |
| %Completed H.S. | 34% | 35% | 1% |
| %Some College | 13% | 15% | 2% |
| %Bachelors or Graduate Degree | 12% | 14% | 2% |
| Persons over 25 | 16,182 | 17,175 | 6% |
| H.S. Dropout Rate | 3% | 3% | 0% |
| Labor Market Structure | |||
| Employed Persons | 13,140 | 14,668 | 12% |
| %Operators, Nonfarm Laborers and Service | 33% | 32% | -1% |
| %Professional & Technical | 11% | 13% | 2% |
| %Managers & Administrators | 7% | 8% | 0% |
| %Sales Workers | 8% | 11% | 3% |
| %Clerical | 10% | 13% | 3% |
| %Craft Workers | 12% | 10% | -2% |
| %Operators | 13% | 12% | -1% |
| %Nonfarm Laborers | 5% | 5% | 0% |
| %Service Workers | 15% | 15% | 0% |
| %Farm Workers | 19% | 14% | -5% |
| %Males Working less than 26 Weeks | 27% | 26% | -1% |
| Males 16 and Over | 10,797 | 10,342 | -4% |
| Poverty and Welfare | |||
| %Persons in Impoverished Families | 10% | 8% | -2% |
| %Whites in Poverty | 10% | 8% | -2% |
| %Blacks in Poverty | 82% | 0% | -82% |
| %Hispanics in Poverty | 8% | 10% | 2% |
| %Households Receiving Welfare or PA | 3% | 4% | 0% |
| Income | |||
| Aggregate Income | $161,906,015 | $263,351,445 | 63% |
| Number of Families | 7,768 | 7,712 | -1% |
| Average Family Income | $20,843 | $34,148 | 64% |
| Aggregate Wage and Salary Income | $102,058,215 | $180,483,519 | 77% |
| Wage and Salary Households | 7,130 | 7,347 | 3% |
| Average Wage and Salary Income | $14,314 | $24,566 | 72% |
| Aggregate Self-Employed Income | $46,278,165 | $58,012,950 | 25% |
| Self-Employed Households | 4,032 | 3,999 | -1% |
| Average Self-Employed Income | $11,478 | $14,507 | 26% |
| Aggregate Earned Income | $152,045,420 | $238,496,469 | 57% |
| Earned Income Households | 8,616 | 8,177 | -5% |
| Average Earned Income | $17,647 | $29,167 | 65% |
| Average Welfare Income per Household | $2,411 | $3,437 | 43% |
| Households Grouped by Income Level | |||
| Income Under $5,000 | 1,201 | 480 | -60% |
| Income of $5,000-9,999 | 1,443 | 814 | -44% |
| Income of $10,000-14,999 | 1,834 | 1,147 | -37% |
| Income of $15,000-24,999 | 3,293 | 2,386 | -28% |
| Income of $25,000-49,999 | 1,818 | 3,928 | 116% |
| Income over $50,000 | 347 | 1,238 | 257% |
| Source: U.S. Census | |||
| Last Update: 7/8/97 |