Austin is about 1.2 times smaller than Sao Tome and Principe.

Sao Tome and Principe is approximately 964 sq km, while Austin is approximately 829 sq km, making Austin 85.96% the size of Sao Tome and Principe.
Tip: This to-scale comparison of Sao Tome and Principe vs. Austin uses the Mercator projection, which distorts the size of regions near the poles.