Austria is approximately 83,871 sq km, while Cayman Islands is approximately 264 sq km, making Cayman Islands 0.31% the size of Austria. Meanwhile, the population of Austria is ~8.9 million people (8.8 million fewer people live in Cayman Islands).
This to-scale map shows a size comparison of Austria compared to Cayman Islands. For more details, see an in-depth quality of life comparison of Cayman Islands vs. Austria using our country comparison tool.