Living in Cascade Valley, WA: what to set up and who to call
Cascade Valley has no town government of its own, so Grant County runs its elections and most services, and its children attend Moses Lake School District. Power in Cascade Valley comes from PUD No 2 of Grant County, a political subdivision utility rather than a private company.
I’m new in town
What to set up in Cascade Valley, 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 Cascade Valley.
Power comes from PUD No 2 of Grant County
PUD No 2 of Grant County (PUD No 2 of Grant County - (WA)), a political subdivision utility, serves all of Cascade Valley. Its homes paid an average of 6.2¢ per kWh in 2025, about $101 a month (its average across Washington).
Start or move service: grantpud.org · (509) 754-0500
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Moses Lake water system
The City of Moses Lake water system supplies Cascade Valley: about 50% of residents live in its service area. Cascade Valley Water District serves another 13%. Basin Water Sources Inc serves another 13%. Hillcrest Water Users Assn serves another 8%. Skyline Water System Inc serves another 8%. About 14% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 32,428 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 latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, was 3.2 ppb, below the 15 ppb action level that applied. That’s higher than 83% of similar systems’ latest results.
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. WA5356300.
6 home internet providers serve Cascade Valley
100% of 1,653 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Vyve Broadband | Fiber, Cable | 100% | 1,000/1,000 |
| Grant PUD | Fiber | 88% | 1,000/1,000 |
| Ziply Fiber | Fixed wireless, Fiber | 53% | 10/1 |
| CenturyLink | DSL | 9% | 40/3 |
| Verizon | Fixed wireless | 77% | 300/20 |
| T-Mobile | Fixed wireless | 3% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Cascade Valley’s trash rules yet
Pickup rules, the dump and recycling in Cascade Valley.
Where your child goes to school
Public school districts and the school path by grade.
Cascade Valley is in Moses Lake School District.
CSchool gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Cascade Valley is unincorporated, so Grant County is the local government.
Election office: FVAP local election office directory, updated Apr 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.
Cascade Valley is in ZIP code 98837
ZIP codes where Cascade Valley residents live, with the share of the town in each.
| ZIP | Post office name | Share of Cascade Valley | ZIP’s residents in Cascade Valley |
|---|---|---|---|
| 98837 | Moses Lake, WA | 100% | 9% |
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 Cascade Valley
Who supplies Cascade Valley’s drinking water, and has it had violations?
The City of Moses Lake water system (EPA ID WA5356300). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 3.2 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Cascade Valley?
PUD No 2 of Grant County (PUD No 2 of Grant County - (WA)), a political subdivision utility. Its homes paid about 6.2¢ per kWh in 2025 (EIA).
What internet providers serve Cascade Valley?
Vyve Broadband, Grant PUD, Ziply Fiber, CenturyLink, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Cascade Valley?
98837. Census 2020 ZIP Code Tabulation Areas.
What school district is Cascade Valley in?
Moses Lake School District.
How do I register to vote in Cascade Valley?
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 Grant County Auditor. 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.