Saint Lucia is about 2,405 times smaller than Alaska.

Alaska is approximately 1,481,348 sq km, while Saint Lucia is approximately 616 sq km, making Saint Lucia 0.04% the size of Alaska. Meanwhile, the population of Alaska is ~710,231 people (543,109 fewer people live in Saint Lucia).
Tip: This to-scale comparison of Alaska vs. Saint Lucia uses the Mercator projection, which distorts the size of regions near the poles.