Davis, known prior to 1907 as Davisville, is a city in the U.S. state of California and the most populous city in Yolo County. It had a population of 65,622 in 2010, not including the on-campus population of the University of California, Davis, which was over 9,400 in 2016. As of 2019, there were 38,369 students enrolled at the university.