Washington is 33% more expensive than Portland.
When comparing Washington, DC and Portland, OR, the overall cost of living indices are 171 and 138 respectively (national median = 100). Rent is $304/month cheaper in Portland, saving renters about $3,648/year.
Median household income is $17,495/year higher in Washington. Home values also differ significantly — the median in Washington is $724,600 compared to $557,600 in Portland.
Oregon has a lower income tax rate, making Portland slightly more tax-friendly.
Washington vs Portland — common questions