| Washington - Means of Transportation to Work | FIPS Code=17075 |
| 1970 | 1980 | 1990 | |
| Per Cent of Working Population that Drove Alone to Work | 48.21 | 58.13 | 75.29 |
| Per Cent of Working Population that Carpooled to Work | 10.27 | 29.69 | 12.59 |
| Per Cent of Working Population that Used Public Transportation | 0.00 | 0.94 | 0.00 |
| Per Cent of Working Population that Walked to Work | 14.73 | 3.75 | 2.75 |
| Per Cent of Working Population that Used Other Means to Get to Work | 0.00 | 0.00 | 3.89 |
| Per Cent of Working Population that Worked at Home | 26.79 | 7.50 | 5.49 |