5. San Jose, California
Credit: Shutterstock / Uladzik Kryhin
Congestion level: 32%Average commute time: 28.5 minutes% of commuters using public transit: 4.2%% of commuters who walk to work: 1.7%
A very low number of commuters use public transportation to get to work in this northern California city. Even fewer walk to work—1.7% is the lowest proportion of walkers on this list. That means many have to rely on the roads, which clock in at a 32% congestion level. As a result, increased and more efficient public transportation have become political talking points in this area, which is home to the expensive real estate market of Silicon Valley.