DuPont is a city in Pierce County, Washington, United States. The population was 8,199 at the 2010 census.
The Nisqually tribe arrived in the area at least 5700 years ago, subsisting on shellfish from the beaches and salmon from Sequalitchew Creek. Captain George Vancouver mapped the area in 1792, and in 1833, theHudson's Bay Company established a fur trading post at Fort Nisqually. The fort was relocated upstream in 1843.DuPont was officially incorporated on March 26, 1912, and was re-incorporated in 1951. DuPont has recently undergone a modern transformation as the modern planned community of "Northwest Landing" has been realized. The city is expected to have a built out population of 12,000+.