St. Petersburg is 54% more expensive than Columbus.
When comparing St. Petersburg, FL and Columbus, GA, the overall cost of living indices are 106 and 69 respectively (national median = 100). Rent is $470/month cheaper in Columbus, saving renters about $5,640/year.
Median household income is $16,496/year higher in St. Petersburg. Home values also differ significantly — the median in St. Petersburg is $331,500 compared to $182,300 in Columbus.
Florida has no state income tax, giving St. Petersburg residents a significant tax advantage over Georgia's 5.49% rate.
St. Petersburg vs Columbus — common questions
Other cost of living comparisons for St. Petersburg and Columbus