St. Petersburg is 17% cheaper than Richardson.
When comparing St. Petersburg, FL and Richardson, TX, the overall cost of living indices are 106 and 128 respectively (national median = 100). Rent is $283/month cheaper in St. Petersburg, saving renters about $3,396/year.
Median household income is $23,139/year higher in Richardson. Home values also differ significantly — the median in St. Petersburg is $331,500 compared to $405,600 in Richardson.
St. Petersburg vs Richardson — common questions
Other cost of living comparisons for St. Petersburg and Richardson