Photo: Ken Lund · CC BY-SA 2.0Living in Smithfield, UT: what to set up and who to call
All of Smithfield gets its mail under one ZIP code, 84335. For emergencies, Smithfield is closest to Cache Valley Hospital, 4.1 miles away.
I’m new in town
What to set up in Smithfield, 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 Smithfield.
Power comes from Rocky Mountain Power
Rocky Mountain Power (PacifiCorp), an investor-owned utility, serves all of Smithfield. Its homes paid an average of 13.5¢ per kWh in 2025, about $101 a month (its average across Utah).
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 Smithfield City water system
The Smithfield City water system supplies almost all of Smithfield. It draws ground water and serves 10,223 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–Jun 2026, was 4.0 ppb, below the 15 ppb action level that applied. The highest in five years was 46.0 ppb. That’s higher than 87% 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. UTAH03020.
8 home internet providers serve Smithfield
100% of 4,018 addresses can get 100/20 Mbps; 19% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 99% | 2,000/250 |
| CenturyLink | DSL, Fiber | 31% | 40/3 |
| Google Fiber | Fiber | 17% | 8,000/8,000 |
| Wi-Fiber | Fixed wireless | 100% | 499/285 |
| Rise Broadband | Fixed wireless | 96% | 25/5 |
| Verizon | Fixed wireless | 66% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Smithfield’s trash rules yet
Pickup rules, the dump and recycling in Smithfield.
Where your child goes to school
Public school districts and the school path by grade.
Smithfield is in Cache 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 Nov 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Mar 13, 2026.
Smithfield is in ZIP code 84335
ZIP codes where Smithfield residents live, with the share of the town in each.
| ZIP | Post office name | Share of Smithfield | ZIP’s residents in Smithfield |
|---|---|---|---|
| 84335 | Smithfield, UT | 100% | 88% |
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 Smithfield
Who supplies Smithfield’s drinking water, and has it had violations?
The Smithfield City water system (EPA ID UTAH03020). 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 4.0 ppb (Jan–Jun 2026), against a 15 ppb action level.
Who provides electricity in Smithfield?
Rocky Mountain Power (PacifiCorp), an investor-owned utility. Its homes paid about 13.5¢ per kWh in 2025 (EIA).
What internet providers serve Smithfield?
Xfinity, CenturyLink, Google Fiber, Wi-Fiber, Rise Broadband, Verizon (FCC, as of December 2025).
What ZIP codes are in Smithfield?
84335. Census 2020 ZIP Code Tabulation Areas.
What school district is Smithfield in?
Cache School District.
How do I register to vote in Smithfield?
In Utah you can register online until 11 days before Election Day, in person up to and including Election Day, or by mail (received 11 days before). Elections here are run by the Cache County Clerk. Check your registration at votesearch.utah.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 Mar 13, 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.