Ohio is about 172 times bigger than Saint Lucia.

Saint Lucia is approximately 616 sq km, while Ohio is approximately 106,056 sq km, making Ohio 17,117% larger than Saint Lucia. Meanwhile, the population of Saint Lucia is ~167,122 people (11.4 million more people live in Ohio).
Tip: This to-scale comparison of Saint Lucia vs. Ohio uses the Mercator projection, which distorts the size of regions near the poles.