 In the US House of Representatives, Chesterfield County is entirely located in South Carolina's .As of the 2012 House elections, it is represented by Republican Tom Rice, who comes from Horry County.Chesterfield County was formerly located in South Carolina's which was one of the seats that the Democrats lost to the Republicans during the 2010 election; before the 2010 election, congressman John M. Spratt had represented the district since 1983 but was defeated 55% to 45% by Republican Mick Mulvaney in 2010.