As of March 23, 2011, there were a total of 42,672 registered voters in Salem, of which 13,052 (30.6%) were registered as Democrats, 8,945 (21.0%) were registered as Republicans and 20,652 (48.4%) were registered as Unaffiliated.
Salem County generally and historically leaned towards the Republican Party, but not as much so as the Northwest or Shore regions of the state.