Delaware is about 16 times smaller than Maine.

Maine is approximately 79,931 sq km, while Delaware is approximately 5,060 sq km, making Delaware 6.33% the size of Maine. Meanwhile, the population of Maine is ~1.3 million people (430,427 fewer people live in Delaware).
Tip: This to-scale comparison of Maine vs. Delaware uses the Mercator projection, which distorts the size of regions near the poles.