| Index | Madrid | Iowa | National |
| Income per capita | $30,966 | $28,872 | $29,829 |
| Median household income | $67,396 | $54,570 | $55,322 |
| Median income owner occupied | $75,573 | $66,527 | $70,586 |
| Median income renter occupied | $42,969 | $30,828 | $35,192 |
| Median earnings male | $44,167 | $37,409 | $36,919 |
| Median earnings female | $39,704 | $25,115 | $26,250 |
| Unemployment rate | 1.7% | 3.1% | 4.7% |
| Poverty level | 6.6% | 12.3% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 15.3% | 15.3% |
| Manufacturing sector | 5.5% | 5.5% |
| Financial & insurance services | 4.2% | 4.2% |
| Wholesale & retail services | 18.8% | 18.8% |
| Public administration | 3.8% | 3.8% |
| Transportation, warehousing & utilities | 9.4% | 9.4% |
| Education, health & social services | 19.9% | 19.9% |
| Other | 21.8% | 21.8% |
| City | Population | Household Income | National Avg. |
| Polk City, IA | 4,797 | $127,226 | 130.0% |
| Alleman, IA | 438 | $111,250 | 101.1% |
| Huxley, IA | 3,912 | $109,583 | 98.1% |
| Kelley, IA | 369 | $101,250 | 83.0% |
| Granger, IA | 1,890 | $96,027 | 73.6% |
| Madrid, IA | 2,570 | $67,396 | 21.8% |
| City | Population | Household Income | National Avg. |
| Oakland City, IN | 2,570 | $42,188 | 23.7% |
| Monticello, UT | 2,570 | $65,928 | 19.2% |
| Lake View, AL | 2,569 | $81,332 | 47.0% |
| Dade City North, FL | 2,569 | $38,345 | 30.7% |
| Horseheads North, NY | 2,569 | $68,382 | 23.6% |
| Madrid, IA | 2,570 | $67,396 | 21.8% |
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