Oregon is about 404 times bigger than Saint Lucia.

Saint Lucia is approximately 616 sq km, while Oregon is approximately 248,631 sq km, making Oregon 40,262% larger than Saint Lucia. Meanwhile, the population of Saint Lucia is ~167,122 people (3.7 million more people live in Oregon).
Tip: This to-scale comparison of Saint Lucia vs. Oregon uses the Mercator projection, which distorts the size of regions near the poles.