McKinney is 100% more expensive than Amarillo.
When comparing McKinney, TX and Amarillo, TX, the overall cost of living indices are 138 and 69 respectively (national median = 100). Rent is $792/month cheaper in Amarillo, saving renters about $9,504/year.
Median household income is $57,804/year higher in McKinney. Home values also differ significantly — the median in McKinney is $439,500 compared to $186,800 in Amarillo.
Both cities share the same state tax structure since they are in Texas.
McKinney vs Amarillo — common questions
Other cost of living comparisons for McKinney and Amarillo