Portland is 8% more expensive than Charleston.
When comparing Portland, OR and Charleston, SC, the overall cost of living indices are 138 and 128 respectively (national median = 100). Rent is comparable in both cities, with less than $50/month separating them.
Median household income is $1,246/year higher in Charleston. Home values also differ significantly — the median in Portland is $557,600 compared to $469,100 in Charleston.
South Carolina has a lower income tax rate, making Charleston slightly more tax-friendly.
Portland vs Charleston — common questions
Other cost of living comparisons for Portland and Charleston