Horatio and Laura Allen Farm · Photo: Jon Roanhaus · CC BY-SA 3.0Living in Duvall, WA: what to set up and who to call
All of Duvall gets its mail under one ZIP code, 98019. Astound Broadband and Ziply Fiber both wire most of Duvall; 65% of addresses can get fiber.
I’m new in town
What to set up in Duvall, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Duvall.
Power comes from Puget Sound Energy
Puget Sound Energy (Puget Sound Energy Inc), an investor-owned utility, serves all of Duvall. Its homes paid an average of 17.0¢ per kWh in 2025, about $147 a month (its average across Washington).
Start or move service: pse.com · (888) 225-5773
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Duvall water system
The City of Duvall water system supplies almost all of Duvall. It buys treated surface water (EPA lists Seattle Public Utilities as seller) and serves 11,050 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The system’s full record: EPA ECHO report
EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0. Violations are counted by the start of their compliance period. WA5320750.
6 home internet providers serve Duvall
100% of 3,073 addresses can get 100/20 Mbps; 65% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Astound Broadband | Cable, Fiber | 98% | 2,000/2,000 |
| Ziply Fiber | Fiber, DSL | 62% | 6,000/6,000 |
| Xfinity | Fiber | 8% | 2,000/2,000 |
| Verizon | Fixed wireless | 49% | 300/20 |
| AT&T | Fixed wireless | 30% | 100/20 |
| T-Mobile | Fixed wireless | 20% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Duvall’s trash rules yet
Pickup rules, the dump and recycling in Duvall.
Where your child goes to school
Public school districts and the school path by grade.
Duvall is in Riverview School District.
ASchool gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Sep 2021; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.
Duvall is in ZIP code 98019
ZIP codes where Duvall residents live, with the share of the town in each.
| ZIP | Post office name | Share of Duvall | ZIP’s residents in Duvall |
|---|---|---|---|
| 98019 | Duvall, WA | 100% | 65% |
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Duvall
Who supplies Duvall’s drinking water, and has it had violations?
The City of Duvall water system (EPA ID WA5320750). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none.
Who provides electricity in Duvall?
Puget Sound Energy (Puget Sound Energy Inc), an investor-owned utility. Its homes paid about 17.0¢ per kWh in 2025 (EIA).
What internet providers serve Duvall?
Astound Broadband, Ziply Fiber, Xfinity, Verizon, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Duvall?
98019. Census 2020 ZIP Code Tabulation Areas.
What school district is Duvall in?
Riverview School District.
How do I register to vote in Duvall?
In Washington you can register online until 8 days before Election Day, in person up to and including Election Day, or by mail (received 8 days before). Elections here are run by the King County Elections. Check your registration at voter.votewa.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Sep 30, 2026 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.