
DuPont
- County:
- Pierce County
- County Seat:
- No
- Area (mi²):
- 5.821
- State:
- Washington
DuPont is a city located in Pierce County, Washington. DuPont has a 2025 population of 9,565. DuPont is currently declining at a rate of -1.13% annually and its population has decreased by -5.41% since the most recent census, which recorded a population of 10,112 in 2020.
The average household income in DuPont is $135,706 with a poverty rate of 3.57%. The median age in DuPont is 35 years: 34.8 years for males, and 35.3 years for females.