Photo: Publichall at English Wikipedia · Public domainLiving in Coulee City, WA: what to set up and who to call
Tap water in Coulee City comes from the Town of Coulee City water system, which has a clean five-year EPA record (about 22% of systems its size had a health-based violation) and a latest lead result below detection. Power in Coulee City 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 Coulee City, 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 Coulee City.
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 Coulee City. 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 Town of Coulee City water system
The Town of Coulee City water system supplies almost all of Coulee City. It draws ground water and serves 944 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 5,327 systems serving 501–1,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.0 ppb. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
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. WA5315300.
5 home internet providers serve Coulee City
94% of 373 addresses can get 100/20 Mbps; 90% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Grant PUD | Fiber | 86% | 1,000/1,000 |
| CenturyLink | DSL | 85% | 10/1 |
| Ziply Fiber | Fiber, Fixed wireless | 9% | 1,000/1,000 |
| Verizon | Fixed wireless | 87% | 300/20 |
| AT&T | Fixed wireless | 55% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Coulee City’s trash rules yet
Pickup rules, the dump and recycling in Coulee City.
Where your child goes to school
Public school districts and the school path by grade.
Coulee City is in Coulee-Hartline School District.
Test scores and every school: see 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 Apr 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.
Coulee City is in ZIP code 99115
ZIP codes where Coulee City residents live, with the share of the town in each.
| ZIP | Post office name | Share of Coulee City | ZIP’s residents in Coulee City |
|---|---|---|---|
| 99115 | Coulee City, WA | 100% | 45% |
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 Coulee City
Who supplies Coulee City’s drinking water, and has it had violations?
The Town of Coulee City water system (EPA ID WA5315300). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Coulee City?
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 Coulee City?
Grant PUD, CenturyLink, Ziply Fiber, Verizon, AT&T (FCC, as of December 2025).
What ZIP codes are in Coulee City?
99115. Census 2020 ZIP Code Tabulation Areas.
What school district is Coulee City in?
Coulee-Hartline School District.
How do I register to vote in Coulee City?
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.