Looking for a drainage contractor in DuPont, WA? Describe your project once and up to five drainage contractors who work in DuPont and Pierce County get back to you with a quote. It's free and there is no obligation.
DuPont is home to about 9,823 people (2024 Census Bureau estimate), a shrinking community (−2.7% since 2020). With 1,688 people per sq mi, it is a suburban area. Heavy rains, clay soils and flat lots are common causes of soggy yards here.
DuPont at a glance
- Population (Census Bureau estimate, 2024)
- 9,823 (−2.7% since 2020)
- Rank in Washington
- 93rd of 281 cities and towns
- Land area
- 5.8 sq mi
- Population density
- 1,688 people per sq mi (suburban)
- Type
- City (DuPont city)
- Main county
- Pierce County
What to check before hiring in DuPont
- Call 811: utilities must be marked before digging.
- Outlet: ask where the water will go; local rules limit discharges toward neighbors and streets.
- Permits: in Washington, large grading jobs may need a permit from the city or county.
- Price drivers: length of drain, depth, outlet, and lawn or hardscape restoration.
Useful official resources
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Call 811
Official information and guidance.
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EPA: green infrastructure for homeowners
Official information and guidance.
Services available in DuPont
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French drain or yard drain
French drain, catch basins or channel drains to move water away from the problem area.
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Grading and regrading
Regrading the soil so that water flows away from the house.
Frequently asked questions in DuPont
How much does yard drainage cost in DuPont, WA?
It depends on the length of drain, the depth and the outlet. Describe the problem: contractors who serve DuPont reply with a quote.
How long does it take?
Most residential drains take one to three days.
Will a drain fix a wet basement?
It can help when water comes from the yard; inside problems may need waterproofing too.
Which drainage contractors will contact me?
Up to five independent drainage contractors who serve DuPont and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.