| Index | Knoxville | Iowa | National |
| Income per capita | $29,137 | $28,872 | $29,829 |
| Median household income | $50,629 | $54,570 | $55,322 |
| Median income owner occupied | $56,613 | $66,527 | $70,586 |
| Median income renter occupied | $34,455 | $30,828 | $35,192 |
| Median earnings male | $46,679 | $37,409 | $36,919 |
| Median earnings female | $28,232 | $25,115 | $26,250 |
| Unemployment rate | 1.6% | 3.1% | 4.7% |
| Poverty level | 11.8% | 12.3% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 9.6% | 9.6% |
| Manufacturing sector | 42.5% | 42.5% |
| Financial & insurance services | 0.4% | 0.4% |
| Wholesale & retail services | 15.5% | 15.5% |
| Public administration | 4.0% | 4.0% |
| Transportation, warehousing & utilities | 7.4% | 7.4% |
| Education, health & social services | 7.5% | 7.5% |
| Other | 11.6% | 11.6% |
| City | Population | Household Income | National Avg. |
| Runnells, IA | 485 | $83,409 | 50.8% |
| Pella, IA | 10,279 | $75,848 | 37.1% |
| Sandyville, IA | 64 | $66,458 | 20.1% |
| Monroe, IA | 1,810 | $60,278 | 9.0% |
| Pleasantville, IA | 2,147 | $59,464 | 7.5% |
| Knoxville, IA | 7,154 | $50,629 | 8.5% |
| City | Population | Household Income | National Avg. |
| Gridley, CA | 7,154 | $50,842 | 8.1% |
| Walled Lake, MI | 7,153 | $53,699 | 2.9% |
| Seminole, OK | 7,155 | $32,656 | 41.0% |
| Heber Springs, AR | 7,156 | $43,946 | 20.6% |
| St. Louis, MI | 7,156 | $42,050 | 24.0% |
| Knoxville, IA | 7,154 | $50,629 | 8.5% |
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