S.C. Const. art. VII, § 8
No County Seat shall be removed except by a vote of two-thirds of the qualified electors of said County voting in an election held for that purpose, but such election shall not be held in any County oftener than once in five years.
The present provisions of this section are similar to Section 6 of Article VIII, which further provides that no county seat shall be established unless a majority of the electors voting on the question shall vote therefor.