U.S. Cities With the Most Hybrid Cars Per Household (2011)

Number of hybrids / 1,000 households
Portland, OR8.8
Helena, MT6.7
San Francisco, CA6.7
Washington, DC5.1
Los Angeles, CA4.8
San Diego, CA4.7
Seattle, WA4.7
Juneau, AK4.6
Santa Barbara, CA4.4
Monterey, CA4.3
Sources: statisticbrain.com