St. Petersburg is 83% more expensive than Jackson.
When comparing St. Petersburg, FL and Jackson, MS, the overall cost of living indices are 106 and 58 respectively (national median = 100). Rent is $524/month cheaper in Jackson, saving renters about $6,288/year.
Median household income is $29,880/year higher in St. Petersburg. Home values also differ significantly — the median in St. Petersburg is $331,500 compared to $108,200 in Jackson.
Florida has no state income tax, giving St. Petersburg residents a significant tax advantage over Mississippi's 5.0% rate.
St. Petersburg vs Jackson — common questions
Other cost of living comparisons for St. Petersburg and Jackson