Paris is a town in and the county seat of Oxford County, Maine, United States. Paris is included in the Lewiston-Auburn, Maine metropolitan New England City and town area. The population was 5,179 at the 2020 census. The census-designated place of South Paris is located within the town. Because the U.S. Post Office refers to the entire town as Sout…Paris is a town in and the county seat of Oxford County, Maine, United States. Paris is included in the Lewiston-Auburn, Maine metropolitan New England City and town area. The population was 5,179 at the 2020 census. The census-designated place of South Paris is located within the town. Because the U.S. Post Office refers to the entire town as South Paris, the town as a whole is commonly referred to as South Paris. The main exception is the area known as Paris Hill, which is a scenic historic district popular with tourists. On May 30, 2019, the town declared itself to be a second amendment sanctuary.