St. Louis is 8% cheaper than Waco.
When comparing St. Louis, MO and Waco, TX, the overall cost of living indices are 66 and 72 respectively (national median = 100). Rent is $120/month cheaper in St. Louis, saving renters about $1,440/year.
Median household income is $3,811/year higher in St. Louis. Home values also differ significantly — the median in St. Louis is $185,100 compared to $199,600 in Waco.
Texas has no state income tax, giving Waco residents a significant tax advantage over Missouri's 4.95% rate.
St. Louis vs Waco — common questions
Other cost of living comparisons for St. Louis and Waco