Cities with the highest percentage of people walking to work:
http://www.governing.com/blogs/by-the-numbers/walk-to-work-census-data-for-cities.html
Most are small cities, such a the first dozen on the list (The top three are the only cities with more then 10% of their population walking to work):
1. Ithaca, NY 15.4% walking to work, out of the total populations of 48,381
2. State College, PA 11.4% walk to work out of a tota pipulation of 74,188
3. Flagstaff, AZ 10.7% of the population out of a total poulation of 63,740
Only seven of the top 100 cities have populations of more then 1 Million Residents:
18. New York-Northern NJ-Long Island, NY-NJ-PA 6.3% out of 8,634,166 people
24. Boston-Cambridge-Quincy, MA-NH 5.3% out of a total population of 2,303,025
54 San Francisco-Oakland-Fremont, CA 4.3% out of total population of 2,051,756
78 Seattle-Tacoma-Bellevue, WA 3.7% out of total population of 1,696,668
79 Philadelphia-Camden-Wilmington, PA-NJ-DE-MD 3.7% out of total population of 2,707,951
97 Pittsburgh, PA 3.4% out of total population of 1,086,691
98 Portland-Vancouver-Hillsboro, OR-WA 3.4% out of total population of 1,051,828
http://www.governing.com/blogs/by-the-numbers/walk-to-work-census-data-for-cities.html
http://www.census.gov/prod/2011pubs/acs-15.pdf
Public Transportation usage:
http://www.census.gov/prod/2010pubs/acsbr09-5.pdf
Since 1989, use of walking to work has DECLINE from 3.4% to 2.9%.
Single car use has dropped from 76.3% of the population to 76.1%.
Carpool use has DROPPED from 11.8% to 10.4%.
Biking to work has increase from .7% to .8%.
Public transportation usage has from 4.6% to 5.0%.
Other means has increased from .5% to .8%.
Working from home as increased from 2.6% to 4.1%.
http://www.bts.gov/publications/national_transportation_statistics/2011/html/table_01_41.html