DuBois /ˈduːbɔɪz/ DOO-boys is a city in Clearfield County, Pennsylvania, United States, 100 miles (160 km) northeast of Pittsburgh. The population was 7,794 at the 2010 census. It is the principal city in the DuBois, PA Micropolitan Statistical Area. DuBois is also one of two principal cities, the other being State College, that make up the larger State College-DuBois, PA Combined Statistical Area.