Washington is about 1.4 times smaller than Oregon.

Oregon is approximately 248,631 sq km, while Washington is approximately 172,348 sq km, making Washington 69.32% the size of Oregon. Meanwhile, the population of Oregon is ~3.8 million people (2.9 million more people live in Washington).
This to-scale comparison of Oregon vs. Washington uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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