| Plymouth County, IA | |||
| Change | |||
| 1980 | 1990 | 1980-90 | |
| County Population | 24,743 | 23,388 | -5% |
| %White | 99% | 100% | 1% |
| %Black | 0% | 0% | 0% |
| %Hispanic | 0% | 0% | 0% |
| %Under 18 | 30% | 29% | -1% |
| %65 years and over | 14% | 16% | 2% |
| %Under 6 | 10% | 9% | -1% |
| %Foreign Born | 0% | 0% | 0% |
| Education (% pop over 25) | |||
| % 0-8 years | 23% | 13% | -10% |
| % 9-11 years | 10% | 9% | -1% |
| %Completed H.S. | 42% | 40% | -2% |
| %Some College | 13% | 16% | 2% |
| %Bachelors or Graduate Degree | 12% | 15% | 3% |
| Persons over 25 | 14,104 | 14,593 | 3% |
| H.S. Dropout Rate | 4% | 4% | 0% |
| Labor Market Structure | |||
| Employed Persons | 10,495 | 10,990 | 5% |
| %Operators, Nonfarm Laborers and Service | 27% | 31% | 4% |
| %Professional & Technical | 10% | 13% | 2% |
| %Managers & Administrators | 8% | 8% | 0% |
| %Sales Workers | 10% | 11% | 1% |
| %Clerical | 13% | 13% | 0% |
| %Craft Workers | 11% | 10% | -1% |
| %Operators | 9% | 12% | 3% |
| %Nonfarm Laborers | 5% | 5% | 0% |
| %Service Workers | 13% | 14% | 1% |
| %Farm Workers | 21% | 14% | -7% |
| %Males Working less than 26 Weeks | 30% | 29% | -1% |
| Males 16 and Over | 8,887 | 8,356 | -6% |
| Poverty and Welfare | |||
| %Persons in Impoverished Families | 12% | 9% | -3% |
| %Whites in Poverty | 12% | 9% | -3% |
| %Blacks in Poverty | 0% | 0% | 0% |
| %Hispanics in Poverty | 0% | 8% | 8% |
| %Households Receiving Welfare or PA | 5% | 4% | -1% |
| Income | |||
| Aggregate Income | $142,833,210 | $226,750,182 | 59% |
| Number of Families | 6,451 | 6,292 | -2% |
| Average Family Income | $22,141 | $36,038 | 63% |
| Aggregate Wage and Salary Income | $88,123,310 | $167,148,120 | 90% |
| Wage and Salary Households | 5,697 | 6,114 | 7% |
| Average Wage and Salary Income | $15,468 | $27,339 | 77% |
| Aggregate Self-Employed Income | $43,849,815 | $40,324,441 | -8% |
| Self-Employed Households | 3,336 | 2,866 | -14% |
| Average Self-Employed Income | $13,144 | $14,070 | 7% |
| Aggregate Earned Income | $133,909,015 | $207,472,561 | 55% |
| Earned Income Households | 7,055 | 6,764 | -4% |
| Average Earned Income | $18,981 | $30,673 | 62% |
| Average Welfare Income per Household | $2,162 | $3,488 | 61% |
| Households Grouped by Income Level | |||
| Income Under $5,000 | 1,104 | 452 | -59% |
| Income of $5,000-9,999 | 1,367 | 833 | -39% |
| Income of $10,000-14,999 | 1,508 | 837 | -44% |
| Income of $15,000-24,999 | 2,462 | 1,700 | -31% |
| Income of $25,000-49,999 | 1,596 | 3,347 | 110% |
| Income over $50,000 | 409 | 1,238 | 203% |
| Source: U.S. Census | |||
| Last Update: 7/8/97 |