Detroit is around the same size as Saint Vincent and the Grenadines.

Saint Vincent and the Grenadines is approximately 389 sq km, while Detroit is approximately 359 sq km, making Detroit 92.37% the size of Saint Vincent and the Grenadines.
Tip: This to-scale comparison of Saint Vincent and the Grenadines vs. Detroit uses the Mercator projection, which distorts the size of regions near the poles.