St. Joseph's Mission · Public domainLiving in Tampico, WA: what to set up and who to call
Tampico has no town government of its own, so Yakima County runs its elections and most services, and its children attend West Valley School District (Yakima). The nearest emergency room is Astria Toppenish Hospital, 28.8 miles away.
I’m new in town
What to set up in Tampico, 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 Tampico.
Power comes from Pacific Power
Pacific Power (PacifiCorp), an investor-owned utility, serves all of Tampico. 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 Tampico Drive Well Owners Assn water system
The Tampico Drive Well Owners Assn water system supplies Tampico: about 22% of residents live in its service area. About 78% 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 42 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 11,392 systems serving <=100 people.
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 (EPA’s estimate). Violations are counted by the start of their compliance period. WA5387144.
Which providers serve Tampico
This card will list the home internet providers the FCC’s National Broadband Map shows in Tampico, the share of addresses that can get 100/20 Mbps and the share with fiber, with the map’s “as of” date.
Source to come: FCC Broadband Data Collection.
We don’t have Tampico’s trash rules yet
Pickup rules, the dump and recycling in Tampico.
Where your child goes to school
Public school districts and the school path by grade.
Most of Tampico (97%) is in West Valley School District (Yakima); parts are in Wapato School District (3%).
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.
No town hall: the county runs things
Tampico 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.
Tampico is in ZIP code 98903
ZIP codes where Tampico residents live, with the share of the town in each.
| ZIP | Post office name | Share of Tampico | ZIP’s residents in Tampico |
|---|---|---|---|
| 98903 | Yakima, WA | 100% | 3% |
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 Tampico
Who supplies Tampico’s drinking water, and has it had violations?
The Tampico Drive Well Owners Assn water system (EPA ID WA5387144). 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 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Tampico?
Pacific Power (PacifiCorp), an investor-owned utility. Its homes paid about 14.3¢ per kWh in 2025 (EIA).
What ZIP codes are in Tampico?
98903. Census 2020 ZIP Code Tabulation Areas.
What school district is Tampico in?
West Valley School District (Yakima). Parts of the city are in Wapato School District.
How do I register to vote in Tampico?
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): pending.