| Brookfield - Occupational Data | FIPS Code=17015 |
| 1970 | |
| Employed Population | 244 |
| Professional - Technical - Kindred | 25 |
| Non-Farm Manager - Administrator | 20 |
| Sales Worker | 5 |
| Clerical Worker | 22 |
| Craftsperson - Foreperson | 42 |
| Non-Transport Operative | 41 |
| Transport Operative | 0 |
| Non-Farm Laborer | 0 |
| Farmer - Farm Manager | 28 |
| Farm Laborer | 29 |
| Non-Private Service | 10 |
| Household Service | 16 |
| Occupation Not Reported | 6 |
| 1980 | 1990 | |
| Employed Population | 412 | 524 |
| Executive - Administrator | 27 | 47 |
| Professional Speciality | 74 | 100 |
| Technicians - Related Support | 9 | 23 |
| Sales | 32 | 46 |
| Administrative - Clerical | 54 | 51 |
| Private Household Service | 2 | 0 |
| Protective Service | 2 | 10 |
| Non-Household, Non-Protective Service | 24 | 57 |
| Natural Resources | 50 | 61 |
| Precision Production - Craft | 56 | 47 |
| Machine Operators | 37 | 41 |
| Mover | 18 | 20 |
| Labor | 27 | 21 |
| 1980 | 1990 | ||
| Per Cent of Working Population Employed in Town of Residence | 28.21 | 18.30 | |
| 1970 | 1980 | 1990 | |
| Unemployment Rate | 5.88 | 5.29 | 6.93 |