Philadelphia is 34% cheaper than Richardson.
When comparing Philadelphia, PA and Richardson, TX, the overall cost of living indices are 85 and 128 respectively (national median = 100). Rent is $502/month cheaper in Philadelphia, saving renters about $6,024/year.
Median household income is $35,559/year higher in Richardson. Home values also differ significantly — the median in Philadelphia is $232,400 compared to $405,600 in Richardson.
Texas has no state income tax, giving Richardson residents a significant tax advantage over Pennsylvania's 3.07% rate.
Philadelphia vs Richardson — common questions
Other cost of living comparisons for Philadelphia and Richardson