Charleston is 60% more expensive than Columbia.
When comparing Charleston, SC and Columbia, SC, the overall cost of living indices are 128 and 80 respectively (national median = 100). Rent is $474/month cheaper in Columbia, saving renters about $5,688/year.
Median household income is $34,385/year higher in Charleston. Home values also differ significantly — the median in Charleston is $469,100 compared to $243,500 in Columbia.
Both cities share the same state tax structure since they are in South Carolina.
Charleston vs Columbia — common questions
Other cost of living comparisons for Charleston and Columbia