Stephens City (/ˈstiːvənz/ STEE-vənz) is an incorporated town in the southern part of Frederick County, Virginia, United States, with a population of 1,829 at the time of the 2010 Census.Founded by Peter Stephens in the 1730s, the colonial town was chartered and named for Lewis Stephens in October 1758. It was originally settled by German Protestants from Heidelberg.