| Warren - Means of Transportation to Work | FIPS Code=23085 |
| 1970 | 1980 | 1990 | |
| Per Cent of Working Population that Drove Alone to Work | 62.18 | 59.30 | 74.84 |
| Per Cent of Working Population that Carpooled to Work | 10.92 | 30.00 | 9.91 |
| Per Cent of Working Population that Used Public Transportation | 0.00 | 0.47 | 0.47 |
| Per Cent of Working Population that Walked to Work | 14.29 | 8.14 | 5.50 |
| Per Cent of Working Population that Used Other Means to Get to Work | 0.00 | 2.09 | 1.89 |
| Per Cent of Working Population that Worked at Home | 12.61 | 6.51 | 7.39 |