St. Louis is 52% cheaper than Allen.
When comparing St. Louis, MO and Allen, TX, the overall cost of living indices are 66 and 137 respectively (national median = 100). Rent is $899/month cheaper in St. Louis, saving renters about $10,788/year.
Median household income is $73,851/year higher in Allen. Home values also differ significantly — the median in St. Louis is $185,100 compared to $429,900 in Allen.
Texas has no state income tax, giving Allen residents a significant tax advantage over Missouri's 4.95% rate.
St. Louis vs Allen — common questions
Other cost of living comparisons for St. Louis and Allen