Vanuatu is about 9 times smaller than Louisiana.

Louisiana is approximately 112,825 sq km, while Vanuatu is approximately 12,189 sq km, making Vanuatu 10.8% the size of Louisiana. Meanwhile, the population of Louisiana is ~4.5 million people (4.2 million fewer people live in Vanuatu).
Tip: This to-scale comparison of Louisiana vs. Vanuatu uses the Mercator projection, which distorts the size of regions near the poles.