Decatur is a city in DeKalb County, Georgia, United States. It is an inner suburb of Atlanta and part of the Atlanta Metropolitan Area. Decatur is known for its vibrant downtown area, which is home to a variety of restaurants, shops, and entertainment venues. The city is also home to a number of parks, including Glenlake Park, which features a lake, walking trails, and a playground. Decatur is a great place to live, work, and play, and is a popular destination for visitors from all over the world.