| ECONOMY | Firth, Idaho | United States |
| | 3.5% | 6.0% |
| | -1.1% | -6.2% |
| | 39.6% | 33.5% |
| | 6.0% | 6.2% |
| | 6.9% | 4.6% |
| | $20,829 | $31,177 |
| | $66,522 | $57,652 |
| | $69,549 | $70,850 |
| POPULATION BY OCCUPATION | | |
| | 4.3% | 1.3% |
| | 0.0% | 0.6% |
| | 10.4% | 6.2% |
| | 21.1% | 10.4% |
| | 0.9% | 2.7% |
| | 6.2% | 11.6% |
| | 5.3% | 4.1% |
| | 0.4% | 0.9% |
| | 0.4% | 2.1% |
| | 2.0% | 4.7% |
| Real estate, rental, leasing | 0.0% | 1.9% |