Columbia is 25% cheaper than Manchester.
When comparing Columbia, SC and Manchester, NH, the overall cost of living indices are 80 and 106 respectively (national median = 100). Rent is $307/month cheaper in Columbia, saving renters about $3,684/year.
Median household income is $21,762/year higher in Manchester. Home values also differ significantly — the median in Columbia is $243,500 compared to $336,300 in Manchester.
New Hampshire has no state income tax, giving Manchester residents a significant tax advantage over South Carolina's 6.4% rate.
Columbia vs Manchester — common questions
Other cost of living comparisons for Columbia and Manchester