Nebraska is around the same size as Senegal.

Senegal is approximately 196,722 sq km, while Nebraska is approximately 199,099 sq km, making Nebraska 1% larger than Senegal. Meanwhile, the population of Senegal is ~17.9 million people (16.1 million fewer people live in Nebraska).
Tip: This to-scale comparison of Senegal vs. Nebraska uses the Mercator projection, which distorts the size of regions near the poles.