Any county officer who is guilty of misconduct or persistent neglect of duty in office or any person who persists in holding any county office to which he has been appointed or elected but the duties of which he has not the capacity to properly discharge shall, upon indictment and true bill after warrant or after presentment of a grand jury and indictment and true bill thereon, be tried as for misdemeanor in office, and upon his conviction the office shall be declared vacant, and the sentence shall be removal of defendant from office. The vacancy shall be filled as when a vacancy occurs by death or resignation.
S.C. Code § 4-11-40