Portland is 100% more expensive than Columbus.
When comparing Portland, OR and Columbus, GA, the overall cost of living indices are 138 and 69 respectively (national median = 100). Rent is $524/month cheaper in Columbus, saving renters about $6,288/year.
Median household income is $32,170/year higher in Portland. Home values also differ significantly — the median in Portland is $557,600 compared to $182,300 in Columbus.
Georgia has a lower income tax rate, making Columbus slightly more tax-friendly.
Portland vs Columbus — common questions
Other cost of living comparisons for Portland and Columbus