| Index | Barnum | Iowa | National |
| Income per capita | $34,175 | $42,672 | $44,883 |
| Median household income | $106,171 | $81,387 | $81,333 |
| Median income owner occupied | $108,091 | $98,724 | $106,172 |
| Median income renter occupied | $0 | $45,890 | $52,080 |
| Median earnings male | $104,706 | $54,047 | $54,343 |
| Median earnings female | $17,946 | $36,462 | $38,439 |
| Unemployment rate | 2.6% | 3.2% | 4.9% |
| Poverty level | 12.4% | 12.3% | 15.1% |
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| Labour Type | Male | Female |
| Construction industry | 11.1% | 11.1% |
| Manufacturing sector | 29.3% | 29.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 9.1% | 9.1% |
| Public administration | 1.0% | 1.0% |
| Transportation, warehousing & utilities | 4.0% | 4.0% |
| Education, health & social services | 12.1% | 12.1% |
| Other | 32.3% | 32.3% |
| City | Population | Household Income | National Avg. |
| Knierim, IA | 58 | $110,616 | 36.0% |
| Badger, IA | 463 | $94,778 | 16.5% |
| Moorland, IA | 160 | $94,215 | 15.8% |
| Clare, IA | 148 | $83,884 | 3.1% |
| Humboldt, IA | 4,694 | $83,796 | 3.0% |
| Barnum, IA | 329 | $106,171 | 30.5% |
| City | Population | Household Income | National Avg. |
| Twin Groves, AR | 329 | $42,974 | 47.2% |
| Manalapan, FL | 329 | $294,938 | 262.6% |
| Greeley, IA | 329 | $104,680 | 28.7% |
| Marble Rock, IA | 329 | $89,625 | 10.2% |
| Rhodes, IA | 329 | $71,340 | 12.3% |
| Barnum, IA | 329 | $106,171 | 30.5% |
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