If the arrest was recent
Start with the county jail
In South Carolina, someone who was just arrested and not released is held in the COUNTY DETENTION CENTER (county jail) run by the county sheriff or a local detention agency (South Carolina has 46 counties), not a state prison, so the SCDC Incarcerated Inmate Search will not show a brand-new arrest.
South Carolina participates in the national VINE system (South Carolina VINE), a free way to check custody status and register for alerts by phone, email, or text (search at vinelink.com).
Many South Carolina county sheriffs and detention centers also post an online jail roster or 'bookings' lookup (for example, Charleston, Greenville, and Richland counties).
For a very recent booking or bail information, call the county detention center's booking or records line.
County detention centers are run by the sheriff or a local detention agency in each of South Carolina's 46 counties, and many post an online roster or bookings lookup. Use the county's roster or South Carolina VINE, and call the detention center's booking/records line for a recent booking and the bail amount.