Oakland is 84% more expensive than St. Petersburg.
When comparing Oakland, CA and St. Petersburg, FL, the overall cost of living indices are 195 and 106 respectively (national median = 100). Rent is $375/month cheaper in St. Petersburg, saving renters about $4,500/year.
Median household income is $24,251/year higher in Oakland. Home values also differ significantly — the median in Oakland is $924,700 compared to $331,500 in St. Petersburg.
Florida has no state income tax, giving St. Petersburg residents a significant tax advantage over California's 13.3% rate.
Oakland vs St. Petersburg — common questions
Other cost of living comparisons for Oakland and St. Petersburg