South Georgia and South Sandwich Islands is about 37 times smaller than Iowa.

Iowa is approximately 144,701 sq km, while South Georgia and South Sandwich Islands is approximately 3,903 sq km, making South Georgia and South Sandwich Islands 2.7% the size of Iowa.
Tip: This to-scale comparison of Iowa vs. South Georgia and South Sandwich Islands uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: South Georgia and South Sandwich Islands vs. Iowa