Mesa and St. Petersburg have a similar cost of living.
When comparing Mesa, AZ and St. Petersburg, FL, the overall cost of living indices are 107 and 106 respectively (national median = 100). Rent is $64/month cheaper in Mesa, saving renters about $768/year.
Median household income is $5,661/year higher in Mesa. Home values also differ significantly — the median in Mesa is $364,300 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.
Mesa vs St. Petersburg — common questions
Other cost of living comparisons for Mesa and St. Petersburg