DFW Airport is about 7 times smaller than District of Columbia.

District of Columbia is approximately 177 sq km, while DFW Airport is approximately 27 km² (10 sq mi), making DFW Airport 14.97% the size of District of Columbia.
Tip: This to-scale comparison of District of Columbia vs. DFW Airport uses the Mercator projection, which distorts the size of regions near the poles.
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