Singapore is about 277 times smaller than Nebraska.

Nebraska is approximately 199,099 sq km, while Singapore is approximately 719 sq km, making Singapore 0.36% the size of Nebraska. Meanwhile, the population of Nebraska is ~1.8 million people (4.1 million more people live in Singapore).
Tip: This to-scale comparison of Nebraska vs. Singapore uses the Mercator projection, which distorts the size of regions near the poles.