Living in Terrace Heights, WA: what to set up and who to call
Terrace Heights has no town government of its own, so Yakima County runs its elections and most services, and its children attend East Valley School District (Yakima). Yak Co - Terrace Heights reported one health-based violation to EPA in the last five years: a bacteria testing requirement (Revised Total Coliform Rule), beginning Aug 2023.
I’m new in town
What to set up in Terrace Heights, 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 Terrace Heights.
Power comes from Pacific Power
Pacific Power (PacifiCorp), an investor-owned utility, serves all of Terrace Heights. Its homes paid an average of 14.3¢ per kWh in 2025, about $167 a month (its average across Washington).
Start or move service: pacificorp.com · (888) 221-7070
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Yak Co - Terrace Heights
Yak Co - Terrace Heights supplies Terrace Heights: about 88% of residents live in its service area. About 8% 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 8,410 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a bacteria testing requirement (Revised Total Coliform Rule), beginning Aug 2023. 80% of the 5,012 systems serving 3,301–10,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, was 0.0 ppb, below the 15 ppb action level that applied. 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. WA5306029.
9 home internet providers serve Terrace Heights
100% of 3,373 addresses can get 100/20 Mbps; 9% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 94% | 1,000/35 |
| CenturyLink | DSL, Fiber | 48% | 60/5 |
| Advanced High Speed Internet | Fixed wireless | 100% | 500/100 |
| Gigabeam Internet | Fixed wireless | 100% | 500/500 |
| PocketiNet | Fixed wireless | 92% | 200/50 |
| AT&T | Fixed wireless | 81% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
The nearest public drop-off is 5 miles away
Pickup rules, the dump and recycling in Terrace Heights.
Soild Waste Trasfer Station
This isn’t Terrace Heights’ own facility. Whether Terrace Heights residents may use it is the town’s rule: check the town’s office.
OpenStreetMap, as of Oct 9, 2026. © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Terrace Heights is in East Valley School District (Yakima).
B+School 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
Terrace Heights is unincorporated, so Yakima County is the local government.
Election office: FVAP local election office directory, updated Aug 2015; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.
Terrace Heights is in ZIP code 98901
ZIP codes where Terrace Heights residents live, with the share of the town in each.
| ZIP | Post office name | Share of Terrace Heights | ZIP’s residents in Terrace Heights |
|---|---|---|---|
| 98901 | Yakima, WA | 100% | 29% |
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 Terrace Heights
Who supplies Terrace Heights’ drinking water, and has it had violations?
Yak Co - Terrace Heights (EPA ID WA5306029). It reported 1 health-based violation to EPA in the five years to October 2026: a bacteria testing requirement (Revised Total Coliform Rule). 80% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Terrace Heights?
Pacific Power (PacifiCorp), an investor-owned utility. Its homes paid about 14.3¢ per kWh in 2025 (EIA).
What internet providers serve Terrace Heights?
Spectrum, CenturyLink, Advanced High Speed Internet, Gigabeam Internet, PocketiNet, AT&T (FCC, as of December 2025).
What ZIP codes are in Terrace Heights?
98901. Census 2020 ZIP Code Tabulation Areas.
What school district is Terrace Heights in?
East Valley School District (Yakima).
How do I register to vote in Terrace Heights?
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 Yakima 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.