St. Louis is 22% more expensive than Brownsville.
When comparing St. Louis, MO and Brownsville, TX, the overall cost of living indices are 66 and 54 respectively (national median = 100). Rent is $72/month cheaper in Brownsville, saving renters about $864/year.
Median household income is $6,604/year higher in St. Louis. Home values also differ significantly — the median in St. Louis is $185,100 compared to $122,400 in Brownsville.
Texas has no state income tax, giving Brownsville residents a significant tax advantage over Missouri's 4.95% rate.
St. Louis vs Brownsville — common questions
Other cost of living comparisons for St. Louis and Brownsville