District of Columbia is about 1,607 times smaller than Nevada.

Nevada is approximately 284,448 sq km, while District of Columbia is approximately 177 sq km, making District of Columbia 0.06% the size of Nevada. Meanwhile, the population of Nevada is ~2.7 million people (2.1 million fewer people live in District of Columbia).
Tip: This to-scale comparison of Nevada vs. District of Columbia uses the Mercator projection, which distorts the size of regions near the poles.