New York is 30% more expensive than Richardson.
When comparing New York, NY and Richardson, TX, the overall cost of living indices are 166 and 128 respectively (national median = 100). Rent is comparable in both cities, with less than $50/month separating them.
Median household income is $16,544/year higher in Richardson. Home values also differ significantly — the median in New York is $751,700 compared to $405,600 in Richardson.
Texas has no state income tax, giving Richardson residents a significant tax advantage over New York's 10.9% rate.
New York vs Richardson — common questions
Other cost of living comparisons for New York and Richardson