St. Paul and Spokane have a similar cost of living.
When comparing St. Paul, MN and Spokane, WA, the overall cost of living indices are 91 and 90 respectively (national median = 100). Rent is $107/month cheaper in Spokane, saving renters about $1,284/year.
Median household income is $7,310/year higher in St. Paul. Home values also differ significantly — the median in St. Paul is $280,300 compared to $326,200 in Spokane.
Washington has no state income tax, giving Spokane residents a significant tax advantage over Minnesota's 9.85% rate.
St. Paul vs Spokane — common questions
Other cost of living comparisons for St. Paul and Spokane