McKinney is 8% more expensive than Charleston.
When comparing McKinney, TX and Charleston, SC, the overall cost of living indices are 138 and 128 respectively (national median = 100). Rent is $209/month cheaper in Charleston, saving renters about $2,508/year.
Median household income is $30,235/year higher in McKinney. Home values also differ significantly — the median in McKinney is $439,500 compared to $469,100 in Charleston.
Texas has no state income tax, giving McKinney residents a significant tax advantage over South Carolina's 6.4% rate.
McKinney vs Charleston — common questions
Other cost of living comparisons for McKinney and Charleston