St. Petersburg is 112% more expensive than Dayton.
When comparing St. Petersburg, FL and Dayton, OH, the overall cost of living indices are 106 and 50 respectively (national median = 100). Rent is $676/month cheaper in Dayton, saving renters about $8,112/year.
Median household income is $29,664/year higher in St. Petersburg. Home values also differ significantly — the median in St. Petersburg is $331,500 compared to $93,200 in Dayton.
Florida has no state income tax, giving St. Petersburg residents a significant tax advantage over Ohio's 3.5% rate.
St. Petersburg vs Dayton — common questions
Other cost of living comparisons for St. Petersburg and Dayton