| AVERAGE SALARY BY INDUSTRY | Frankfort, Illinois | United States |
| Agriculture, Forestry, Fishing and Hunting | $0 | $24,135 |
| Mining, Quarrying, and Oil and Gas Extraction | $90,662 | $62,204 |
| Construction | $76,343 | $35,300 |
| Manufacturing | $67,273 | $42,158 |
| Wholesale Trade | $61,154 | $41,714 |
| Retail Trade | $21,311 | $21,666 |
| Transportation and Warehousing | $73,654 | $40,449 |
| Utilities | $118,365 | $62,996 |
| Information | $70,053 | $48,512 |
| Finance and Insurance | $64,653 | $50,584 |
| Real Estate and Rental and Leasing | $75,536 | $36,265 |
| Professional, Scientific, and Technical Services | $67,074 | $59,897 |
| Management of Companies and Enterprises | $51,591 | $61,392 |
| Administrative and Support and Waste Services | $52,446 | $23,873 |
| Educational Services | $50,100 | $37,346 |
| Health Care and Social Assistance | $42,387 | $33,234 |
| Arts, Entertainment, and Recreation | $14,420 | $21,042 |
| Accommodation and Food Services | $6,477 | $14,790 |
| Other Services | $31,855 | $22,627 |
| Public Administration | $85,263 | $51,719 |