Virden is a city in Macoupin and Sangamon counties in the U.S. state of Illinois. The population was 3,231 at the 2020 census. The Macoupin County portion of Virden is part of the St. Louis, Missouri–Illinois Metropolitan Statistical Area, while the Sangamon County portion is part of the Springfield Metropolitan Statistical Area. Virden was the scene of an 1898 coal miners' strike, during which Mary Harris "Mother" Jones played a major role.