Gilbert is 40% more expensive than St. Petersburg.
When comparing Gilbert, AZ and St. Petersburg, FL, the overall cost of living indices are 148 and 106 respectively (national median = 100). Rent is $486/month cheaper in St. Petersburg, saving renters about $5,832/year.
Median household income is $48,233/year higher in Gilbert. Home values also differ significantly — the median in Gilbert is $518,600 compared to $331,500 in St. Petersburg.
Florida has no state income tax, giving St. Petersburg residents a significant tax advantage over Arizona's 2.5% rate.
Gilbert vs St. Petersburg — common questions
Other cost of living comparisons for Gilbert and St. Petersburg