St. Louis is 4% cheaper than Columbus.
When comparing St. Louis, MO and Columbus, GA, the overall cost of living indices are 66 and 69 respectively (national median = 100). Rent is $94/month cheaper in St. Louis, saving renters about $1,128/year.
Median household income is $1,343/year higher in Columbus. Home values also differ significantly — the median in St. Louis is $185,100 compared to $182,300 in Columbus.
Missouri has a lower income tax rate, making St. Louis slightly more tax-friendly.
St. Louis vs Columbus — common questions
Other cost of living comparisons for St. Louis and Columbus