| AVERAGE SALARY BY INDUSTRY | Northfield, Michigan | United States |
| Agriculture, Forestry, Fishing and Hunting | $11,042 | $24,135 |
| Mining, Quarrying, and Oil and Gas Extraction | $0 | $62,204 |
| Construction | $25,132 | $35,300 |
| Manufacturing | $67,306 | $42,158 |
| Wholesale Trade | $40,192 | $41,714 |
| Retail Trade | $26,089 | $21,666 |
| Transportation and Warehousing | $31,053 | $40,449 |
| Utilities | $0 | $62,996 |
| Information | $81,875 | $48,512 |
| Finance and Insurance | $51,154 | $50,584 |
| Real Estate and Rental and Leasing | $24,444 | $36,265 |
| Professional, Scientific, and Technical Services | $46,136 | $59,897 |
| Management of Companies and Enterprises | $0 | $61,392 |
| Administrative and Support and Waste Services | $15,306 | $23,873 |
| Educational Services | $46,121 | $37,346 |
| Health Care and Social Assistance | $30,625 | $33,234 |
| Arts, Entertainment, and Recreation | $18,125 | $21,042 |
| Accommodation and Food Services | $11,046 | $14,790 |
| Other Services | $24,398 | $22,627 |
| Public Administration | $62,109 | $51,719 |