| Index | Firth | Idaho | National |
| Income per capita | $21,199 | $24,280 | $29,829 |
| Median household income | $57,115 | $49,174 | $55,322 |
| Median income owner occupied | $60,938 | $59,554 | $70,586 |
| Median income renter occupied | $56,058 | $30,762 | $35,192 |
| Median earnings male | $40,600 | $31,790 | $36,919 |
| Median earnings female | $0 | $20,292 | $26,250 |
| Unemployment rate | 0.0% | 3.9% | 4.7% |
| Poverty level | 5.1% | 15.2% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 13.7% | 13.7% |
| Manufacturing sector | 21.6% | 21.6% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 2.6% | 2.6% |
| Public administration | 5.2% | 5.2% |
| Transportation, warehousing & utilities | 26.8% | 26.8% |
| Education, health & social services | 11.1% | 11.1% |
| Other | 17.6% | 17.6% |
| City | Population | Household Income | National Avg. |
| Riverside, ID | 1,131 | $81,789 | 47.8% |
| Lincoln, ID | 3,380 | $67,336 | 21.7% |
| Basalt, ID | 436 | $57,813 | 4.5% |
| Idaho Falls, ID | 62,417 | $56,590 | 2.3% |
| Ammon, ID | 16,403 | $55,065 | 0.5% |
| Firth, ID | 568 | $57,115 | 3.2% |
| City | Population | Household Income | National Avg. |
| Dustin Acres, CA | 568 | $46,667 | 15.6% |
| Hopkinton, IA | 568 | $58,281 | 5.3% |
| Scranton, IA | 568 | $48,173 | 12.9% |
| Hutsonville, IL | 568 | $46,875 | 15.3% |
| Grayson, LA | 568 | $38,750 | 30.0% |
| Firth, ID | 568 | $57,115 | 3.2% |
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