Wisconsin is about 1.2 times bigger than North Korea.

North Korea is approximately 120,538 sq km, while Wisconsin is approximately 140,663 sq km, making Wisconsin 17% larger than North Korea. Meanwhile, the population of North Korea is ~26.0 million people (20.3 million fewer people live in Wisconsin).
Tip: This to-scale comparison of North Korea vs. Wisconsin uses the Mercator projection, which distorts the size of regions near the poles.