Moved to Columbia South Carolina - Voting ??

[SCantiGOP]

9. Voting

Registration at the county election commission office has an Oct 4 deadline. I would suggest going there. It is on Hampton and Harden Street near 5 Points just east of downtown.
There is no party registration. The only restriction is that if you vote in the first round of a party primary you cannot vote in the other party’s runoff. A few people do this every year and are cited for it, but it is usually just a mistake.
I have on a few occasion voted in the GOP primary for the least bad candidate because there were no Dem contests in my district (I live in the neighboring very red county of Lexington).
The State Democratic office is also near downtown on Gadsden Street. They can put you in touch with county Party people if you want to get active.
Good news is that your county will be Blue this election, but will be overwhelmed by the Red voters everywhere except the metro areas of Columbia and Charleston and the heavy minority region mainly along the I-95 corridor.
Let me know if you have any other questions.