| AVERAGE SALARY BY INDUSTRY | OFallon, Illinois | United States |
| Agriculture, Forestry, Fishing and Hunting | $0 | $24,135 |
| Mining, Quarrying, and Oil and Gas Extraction | $0 | $62,204 |
| Construction | $54,531 | $35,300 |
| Manufacturing | $74,063 | $42,158 |
| Wholesale Trade | $60,268 | $41,714 |
| Retail Trade | $20,275 | $21,666 |
| Transportation and Warehousing | $46,023 | $40,449 |
| Utilities | $55,278 | $62,996 |
| Information | $46,815 | $48,512 |
| Finance and Insurance | $62,066 | $50,584 |
| Real Estate and Rental and Leasing | $33,083 | $36,265 |
| Professional, Scientific, and Technical Services | $66,121 | $59,897 |
| Management of Companies and Enterprises | $0 | $61,392 |
| Administrative and Support and Waste Services | $40,363 | $23,873 |
| Educational Services | $41,024 | $37,346 |
| Health Care and Social Assistance | $35,979 | $33,234 |
| Arts, Entertainment, and Recreation | $13,363 | $21,042 |
| Accommodation and Food Services | $8,771 | $14,790 |
| Other Services | $23,393 | $22,627 |
| Public Administration | $68,517 | $51,719 |