Portland is 45% more expensive than Arlington.
When comparing Portland, OR and Arlington, TX, the overall cost of living indices are 138 and 95 respectively (national median = 100). Rent is $207/month cheaper in Arlington, saving renters about $2,484/year.
Median household income is $15,273/year higher in Portland. Home values also differ significantly — the median in Portland is $557,600 compared to $276,400 in Arlington.
Texas has no state income tax, giving Arlington residents a significant tax advantage over Oregon's 9.9% rate.
Portland vs Arlington — common questions
Other cost of living comparisons for Portland and Arlington