The Official Gatlinburg fan page. Gatlinburg is nestled at the entrance to Great Smoky Mountains National Park, the most visited national park in America. There are three entrances into the Smokies right from downtown. Gatlinburg attracts more than eleven million visitors a year and can grow to a population of 40,000-plus on any givennight. This little town of 3,944 residents is dedicated to welcoming all of its guests with a taste of Appalachian hospitality at its best.