| AVERAGE SALARY BY INDUSTRY | Firth, Idaho | United States |
| Agriculture, Forestry, Fishing and Hunting | $41,750 | $24,135 |
| Mining, Quarrying, and Oil and Gas Extraction | $0 | $62,204 |
| Construction | $37,059 | $35,300 |
| Manufacturing | $36,071 | $42,158 |
| Wholesale Trade | $48,250 | $41,714 |
| Retail Trade | $18,125 | $21,666 |
| Transportation and Warehousing | $30,625 | $40,449 |
| Utilities | $0 | $62,996 |
| Information | $0 | $48,512 |
| Finance and Insurance | $0 | $50,584 |
| Real Estate and Rental and Leasing | $0 | $36,265 |
| Professional, Scientific, and Technical Services | $21,157 | $59,897 |
| Management of Companies and Enterprises | $0 | $61,392 |
| Administrative and Support and Waste Services | $12,083 | $23,873 |
| Educational Services | $47,652 | $37,346 |
| Health Care and Social Assistance | $32,188 | $33,234 |
| Arts, Entertainment, and Recreation | $0 | $21,042 |
| Accommodation and Food Services | $8,929 | $14,790 |
| Other Services | $6,615 | $22,627 |
| Public Administration | $98,125 | $51,719 |