| Index | Humboldt | Iowa | National | 
| Income per capita | $30,601 | $28,872 | $29,829 | 
| Median household income | $55,640 | $54,570 | $55,322 | 
| Median income owner occupied | $67,292 | $66,527 | $70,586 | 
| Median income renter occupied | $28,092 | $30,828 | $35,192 | 
| Median earnings male | $41,699 | $37,409 | $36,919 | 
| Median earnings female | $24,395 | $25,115 | $26,250 | 
| Unemployment rate | 1.9% | 3.1% | 4.7% | 
| Poverty level | 14.6% | 12.3% | 15.1% | 

 
				
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				| Labour Type | Male | Female | 
| Construction industry | 8.7% | 8.7% | 
| Manufacturing sector | 29.0% | 29.0% | 
| Financial & insurance services | 3.6% | 3.6% | 
| Wholesale & retail services | 24.0% | 24.0% | 
| Public administration | 0.0% | 0.0% | 
| Transportation, warehousing & utilities | 8.6% | 8.6% | 
| Education, health & social services | 5.5% | 5.5% | 
| Other | 16.1% | 16.1% | 
| City | Population | Household Income | National Avg. | 
| Livermore, IA | 434 | $73,542 | 32.9% | 
| Barnum, IA | 323 | $71,902 | 30.0% | 
| Badger, IA | 448 | $64,028 | 15.7% | 
| Clare, IA | 144 | $56,964 | 3.0% | 
| Rutland, IA | 147 | $56,250 | 1.7% | 
| Humboldt, IA | 4,568 | $55,640 | 0.6% | 
| City | Population | Household Income | National Avg. | 
| Portola Valley, CA | 4,568 | $235,469 | 325.6% | 
| Longbranch, WA | 4,568 | $64,035 | 15.7% | 
| Rio Communities, NM | 4,566 | $38,263 | 30.8% | 
| Williamstown, MA | 4,565 | $80,000 | 44.6% | 
| Hollister, MO | 4,564 | $46,823 | 15.4% | 
| Humboldt, IA | 4,568 | $55,640 | 0.6% |