This report focuses on patterns of commuting by private vehicle among U.S. workers in 2013. It highlights differences in rates of automobile commuting by key population characteristics such as age, race, ethnicity, and the types of communities in which workers live. The information presented is based on data from the American Community Survey (ACS), a survey conducted annually by the U.S. Census Bureau to gather information about changes in the socioeconomic, housing, and demographic characteristics of communities across the United States.