| Cambridge - Occupational Data | FIPS Code=15010 |
| 1970 | |
| Employed Population | 383 |
| Professional - Technical - Kindred | 18 |
| Non-Farm Manager - Administrator | 48 |
| Sales Worker | 0 |
| Clerical Worker | 21 |
| Craftsperson - Foreperson | 88 |
| Non-Transport Operative | 30 |
| Transport Operative | 43 |
| Non-Farm Laborer | 15 |
| Farmer - Farm Manager | 48 |
| Farm Laborer | 32 |
| Non-Private Service | 31 |
| Household Service | 5 |
| Occupation Not Reported | 4 |
| 1980 | 1990 | |
| Employed Population | 889 | 1461 |
| Executive - Administrator | 65 | 172 |
| Professional Speciality | 131 | 232 |
| Technicians - Related Support | 34 | 52 |
| Sales | 70 | 148 |
| Administrative - Clerical | 103 | 169 |
| Private Household Service | 15 | 5 |
| Protective Service | 3 | 28 |
| Non-Household, Non-Protective Service | 125 | 176 |
| Natural Resources | 86 | 94 |
| Precision Production - Craft | 126 | 189 |
| Machine Operators | 68 | 94 |
| Mover | 28 | 56 |
| Labor | 35 | 46 |
| 1980 | 1990 | ||
| Per Cent of Working Population Employed in Town of Residence | 33.43 | 42.50 | |
| 1970 | 1980 | 1990 | |
| Unemployment Rate | 2.32 | 10.20 | 3.75 |