St. Petersburg is 20% more expensive than Hampton.
When comparing St. Petersburg, FL and Hampton, VA, the overall cost of living indices are 106 and 88 respectively (national median = 100). Rent is $196/month cheaper in Hampton, saving renters about $2,352/year.
Median household income is $5,360/year higher in St. Petersburg. Home values also differ significantly — the median in St. Petersburg is $331,500 compared to $234,100 in Hampton.
Florida has no state income tax, giving St. Petersburg residents a significant tax advantage over Virginia's 5.75% rate.
St. Petersburg vs Hampton — common questions
Other cost of living comparisons for St. Petersburg and Hampton