Irving is 20% cheaper than Richardson.
When comparing Irving, TX and Richardson, TX, the overall cost of living indices are 102 and 128 respectively (national median = 100). Rent is $308/month cheaper in Irving, saving renters about $3,696/year.
Median household income is $16,616/year higher in Richardson. Home values also differ significantly — the median in Irving is $287,300 compared to $405,600 in Richardson.
Both cities share the same state tax structure since they are in Texas.
Irving vs Richardson — common questions
Other cost of living comparisons for Irving and Richardson