City size comparison

compared to

Istanbul is about 15 times bigger than Portland.

Portland is approximately 346 sq km, while Istanbul is approximately 5,343 sq km, making Istanbul 1,445% larger than Portland.
Tip: This to-scale comparison of Portland vs. Istanbul uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Istanbul vs. Portland

Flip Comparison · See true size
See Istanbul on top of Portland
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Cost of Living Comparison · 7 categories - 2026 data
Portland is 89.4% more expensive than Istanbul
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