| Middlesex - Means of Transportation to Work | FIPS Code=23050 |
| 1970 | 1980 | 1990 | |
| Per Cent of Working Population that Drove Alone to Work | 78.00 | 66.73 | 75.59 |
| Per Cent of Working Population that Carpooled to Work | 6.75 | 29.70 | 9.79 |
| Per Cent of Working Population that Used Public Transportation | 0.00 | 0.94 | 0.71 |
| Per Cent of Working Population that Walked to Work | 8.00 | 1.50 | 0.94 |
| Per Cent of Working Population that Used Other Means to Get to Work | 7.25 | 1.13 | 0.71 |
| Per Cent of Working Population that Worked at Home | 0.00 | 2.26 | 12.26 |