| Topsham - Means of Transportation to Work | FIPS Code=17060 |
| 1970 | 1980 | 1990 | |
| Per Cent of Working Population that Drove Alone to Work | 55.41 | 46.43 | 75.95 |
| Per Cent of Working Population that Carpooled to Work | 38.10 | 34.42 | 7.13 |
| Per Cent of Working Population that Used Public Transportation | 0.00 | 1.30 | 0.67 |
| Per Cent of Working Population that Walked to Work | 3.03 | 4.22 | 4.45 |
| Per Cent of Working Population that Used Other Means to Get to Work | 0.00 | 0.00 | 5.12 |
| Per Cent of Working Population that Worked at Home | 3.46 | 13.64 | 6.68 |