Bourbon is an American whiskey. It can legally be made anywhere in the United States, but the overwhelming majority — around 95% — is produced in Kentucky, whose limestone water, climate, and history made it the heart of bourbon country.
Bourbon is American by law
Bourbon is recognized as a "distinctive product of the United States," which is why it has to be made in the U.S. to carry the name. Beyond that, no single state has a monopoly — bourbon is made in many states. But one state towers over the rest.
Why Kentucky owns bourbon
Roughly 95% of the world's bourbon comes from Kentucky, and that's no accident:
- Limestone water. Kentucky's limestone shelf filters iron out of the water and adds minerals — ideal for distilling.
- The climate. Hot summers and cold winters push whiskey in and out of the charred oak as the barrels expand and contract, accelerating how the spirit picks up flavor.
- Corn country. The region's farmland made corn — bourbon's primary grain — cheap and abundant from the start.
- History. Generations of distilling families built the craft, the brands, and the infrastructure here.
How did bourbon get its name?
The honest answer: it's debated. The name is commonly traced either to Bourbon County, Kentucky or to Bourbon Street in New Orleans, a major port for shipping the whiskey. Historians still argue it. What's certain is that the name stuck, and Kentucky became its home.
Come to the source
Today Louisville is the gateway to bourbon country, and the NuLu neighborhood is one of its densest stretches of craft distilling. Start at our rickhouse with a tasting experience, or plan a day with our guide to the best distillery tours in Louisville.
Keep reading: What is bourbon made from? · What is straight bourbon whiskey? · Things to do in NuLu