Staten Island is around the same size as Washington.

Washington is approximately 158 sq km, while Staten Island is approximately 149 sq km, making Staten Island 94.1% the size of Washington.
Tip: This to-scale comparison of Washington vs. Staten Island 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.