What state is a leader in dairy products and the principle cheese making area of world?

The state that is a leader in dairy products and the principle cheese making area of the world is not a single state, but rather a region:

* Wisconsin, USA is often called "America's Dairyland" and is a major producer of dairy products, including cheese.

While Wisconsin is a significant producer, it's important to note that the global cheese production is spread across many countries, with Italy, France, Germany, and the Netherlands being some of the other major players.