St. Louis is 4% cheaper than Amarillo.
When comparing St. Louis, MO and Amarillo, TX, the overall cost of living indices are 66 and 69 respectively (national median = 100). Rent is $71/month cheaper in St. Louis, saving renters about $852/year.
Median household income is $7,190/year higher in Amarillo. Home values also differ significantly — the median in St. Louis is $185,100 compared to $186,800 in Amarillo.
Texas has no state income tax, giving Amarillo residents a significant tax advantage over Missouri's 4.95% rate.
St. Louis vs Amarillo — common questions
Other cost of living comparisons for St. Louis and Amarillo