Surrey is around the same size as Portland.

Portland is approximately 346 sq km, while Surrey is approximately 316 sq km, making Surrey 91.52% the size of Portland.
Tip: This to-scale comparison of Portland vs. Surrey uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.