Wyoming is around the same size as Nevada.

Nevada is approximately 284,448 sq km, while Wyoming is approximately 251,489 sq km, making Wyoming 88.41% the size of Nevada. Meanwhile, the population of Nevada is ~2.7 million people (2.1 million fewer people live in Wyoming).
Tip: This to-scale comparison of Nevada vs. Wyoming uses the Mercator projection, which distorts the size of regions near the poles.