<!-- --> Primary elections are scheduled to be held on Saturday , February 29 , 2020 . In the open primary , candidates must meet a viability threshold of 15 percent at the congressional district or statewide level in order to be considered viable . The 54 pledged delegates to the 2020 Democratic National Convention allocated proportionally on the basis of the results of the primary . Of these 54 pledged delegates , 35 are allocated on the basis of the results within each congressional district , between 4 and 8 are allocated to each of the state 's 7 congressional districts and another 7 are allocated to party leaders and elected officials ( PLEO delegates ) , in addition to 12 at-large pledged delegates . These delegate totals do not account for pledged delegate bonuses or penalties from timing or clustering
2020 Democratic National Convention
2020 Democratic National Convention
2020 South Carolina Democratic primary