Cody is a city in and the county seat of Park County, Wyoming, United States. It is named after Buffalo Bill Cody for his part in the founding …Cody is a city in and the county seat of Park County, Wyoming, United States. It is named after Buffalo Bill Cody for his part in the founding of Cody in 1896. The population was 10,028 at the 2020 census, making Cody the eleventh-largest city in Wyoming by population. Cody is served by Yellowstone Regional Airport.