| Topsham - Occupational Data | FIPS Code=17060 |
| 1970 | |
| Employed Population | 191 |
| Professional - Technical - Kindred | 20 |
| Non-Farm Manager - Administrator | 0 |
| Sales Worker | 0 |
| Clerical Worker | 18 |
| Craftsperson - Foreperson | 34 |
| Non-Transport Operative | 43 |
| Transport Operative | 0 |
| Non-Farm Laborer | 20 |
| Farmer - Farm Manager | 5 |
| Farm Laborer | 11 |
| Non-Private Service | 5 |
| Household Service | 8 |
| Occupation Not Reported | 27 |
| 1980 | 1990 | |
| Employed Population | 318 | 454 |
| Executive - Administrator | 31 | 47 |
| Professional Speciality | 31 | 39 |
| Technicians - Related Support | 4 | 23 |
| Sales | 19 | 48 |
| Administrative - Clerical | 39 | 52 |
| Private Household Service | 0 | 0 |
| Protective Service | 2 | 2 |
| Non-Household, Non-Protective Service | 17 | 49 |
| Natural Resources | 50 | 33 |
| Precision Production - Craft | 51 | 67 |
| Machine Operators | 54 | 28 |
| Mover | 9 | 44 |
| Labor | 11 | 22 |
| 1980 | 1990 | ||
| Per Cent of Working Population Employed in Town of Residence | 35.25 | 19.60 | |
| 1970 | 1980 | 1990 | |
| Unemployment Rate | 0.00 | 7.56 | 6.97 |