Dupont is a rural community within the larger unincorporated community of Seymour, in Sevier County, Tennessee, United States. The name "Dupont" is said to come from the term "dew point". A resort that operated between 1901 and 1916 on Bluff Mountain was initially called “Dew Point” because dew seldom formed at its mountainside location. Over time, …Dupont is a rural community within the larger unincorporated community of Seymour, in Sevier County, Tennessee, United States. The name "Dupont" is said to come from the term "dew point". A resort that operated between 1901 and 1916 on Bluff Mountain was initially called “Dew Point” because dew seldom formed at its mountainside location. Over time, the name changed to "Dupont".