Douglas is a city in Coffee County, Georgia, United States. As of the 2020 census, the city had a population of 11,722. Douglas is the county se…Douglas is a city in Coffee County, Georgia, United States. As of the 2020 census, the city had a population of 11,722. Douglas is the county seat of Coffee County and the core city of the Douglas micropolitan statistical area, which had a population of 50,731 as of the 2010 census.