California is the second-most energy-efficient state, boasting the lowest residential energy consumption per capita and the fourth-highest home energy efficiency.

In addition, California’s residents are efficient when it comes to automobiles. Californians drive fewer miles per year than people in all but four other states, an average of just 8,068 miles per year. This is due in part to the robust public transportation systems in its large cities. California also has the seventh-highest vehicle fuel efficiency.

WalletHub compared 48 states across two key dimensions, “Home Energy Efficiency” and “Auto Energy Efficiency.” It calculated the ratio of total residential energy consumption to annual degree days.

Story Date: October 14, 2025