DuPont, Washington
city in the state of Washington, USA

DuPont is a city in Pierce County, Washington, United States. The population was 10,151 at the 2020 census. Originally a company town, the city is named after the DuPont chemical company which operated an explosives manufacturing plant in the area from 1909 to 1975.
History
There was a Native American presence in the area for the last 10,000 years. At the time of contact the Nisqually Tribe lived in relative peace and prosperity in their aboriginal homeland of about two million acres (810,000 ha) near the present-day towns of Olympia, Tenino, and DuPont, and extending to Mount Rainier. Tribal life changed radically with the advent of Euro-American settlement about 150 years ago. Forced to compromise its interests and rights over the years, the Tribe always sought to maintain its integrity and dignity. Subsisting on shellfish from the beaches and salmon from Sequalitchew Creek. Captain George Vancouver mapped the area in 1792, and in 1833, the Hudson's Bay Company established a fur trading post at Fort Nisqually as a halfway point between Ft. Vancouver and Ft.
“DuPont, Washington” enters the record as city in the state of Washington, USA. Crown Archives preserves that source wording while asking what DuPont, Washington and city can confirm, complicate or overturn.
Why this record matters
“DuPont, Washington” is worth following because a concise public description often conceals a longer documentary argument. Here, DuPont, Washington and city provides the most credible route into that argument.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q128112. VIAF identifies the subject as 123545625. The Library of Congress control number is no2008114740. Authority coordinates are 47.099, -122.638. 3 of 5 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020, 1909, 1975 and 1792.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Three-step research path
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Questions for further research
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This entry incorporates text from “DuPont, Washington” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.