Austin is 103% more expensive than St. Louis.
When comparing Austin, TX and St. Louis, MO, the overall cost of living indices are 134 and 66 respectively (national median = 100). Rent is $677/month cheaper in St. Louis, saving renters about $8,124/year.
Median household income is $36,182/year higher in Austin. Home values also differ significantly — the median in Austin is $512,700 compared to $185,100 in St. Louis.
Texas has no state income tax, giving Austin residents a significant tax advantage over Missouri's 4.95% rate.
Austin vs St. Louis — common questions
Other cost of living comparisons for Austin and St. Louis