St. Louis is in the region of Missouri, in USA.
St. Louis, located in Missouri of USA, is a city known for its iconic Gateway Arch, which stands tall in the downtown area. It's a bustling metropolitan city that offers visitors a mix of urban city charm and outdoor adventures. The city has a rich history, as it was a trading hub for the fur industry and played a significant role in the westward expansion of America during the 19th century. Today, it's a popular tourist destination with a diverse range of attractions, including museums, art galleries, parks, and a vibrant music and dining scene.