| Williamstown - Means of Transportation to Work | FIPS Code=17085 |
| 1970 | 1980 | 1990 | |
| Per Cent of Working Population that Drove Alone to Work | 60.69 | 58.05 | 67.37 |
| Per Cent of Working Population that Carpooled to Work | 22.83 | 27.70 | 13.94 |
| Per Cent of Working Population that Used Public Transportation | 0.00 | 0.00 | 0.91 |
| Per Cent of Working Population that Walked to Work | 6.65 | 6.21 | 7.42 |
| Per Cent of Working Population that Used Other Means to Get to Work | 0.72 | 1.26 | 1.54 |
| Per Cent of Working Population that Worked at Home | 9.10 | 6.78 | 8.82 |