Lewiston Historic District · Photo: Adrian Reed Smith (VivaLaPandaz) · CC BY-SA 3.0Living in Lewiston, CA: what to set up and who to call
Lewiston has no town government of its own, so Trinity County runs its elections and most services, and its children attend Trinity Alps Unified School District (9-12). Lewiston Community Services District reported one health-based violation to EPA in the last five years: a surface water treatment requirement (Interim Enhanced Surface Water Treatment Rule), beginning Mar 2024.
I’m new in town
What to set up in Lewiston, 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 Lewiston.
Power comes from Trinity Public Utilities Dist
Trinity Public Utilities Dist (Trinity Public Utilities Dist), a political subdivision utility, serves all of Lewiston.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Lewiston Community Services District
Lewiston Community Services District supplies Lewiston: about 17% of residents live in its service area. Bucktail Mutual Water Company serves another 9%. About 74% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws surface water and serves 677 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a surface water treatment requirement (Interim Enhanced Surface Water Treatment Rule), beginning Mar 2024. 78% of the 5,327 systems serving 501–1,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2026–Dec 2028, was 1.0 ppb, below the 15 ppb action level that applied. The highest in five years was 2.7 ppb. That’s lower than 51% 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. CA5301002.
Which providers serve Lewiston
This card will list the home internet providers the FCC’s National Broadband Map shows in Lewiston, 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 Lewiston’s trash rules yet
Pickup rules, the dump and recycling in Lewiston.
Where your child goes to school
Public school districts and the school path by grade.
Lewiston is in two districts that split the grades: Trinity Alps Unified School District (9-12) and Lewiston Elementary School District.
DSchool 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
Lewiston is unincorporated, so Trinity County is the local government.
Election office: FVAP local election office directory, updated Jul 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Lewiston is in ZIP code 96052
ZIP codes where Lewiston residents live, with the share of the town in each.
| ZIP | Post office name | Share of Lewiston | ZIP’s residents in Lewiston |
|---|---|---|---|
| 96052 | Lewiston, CA | 100% | 81% |
A few homes fall in 96024.
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 Lewiston
Who supplies Lewiston’s drinking water, and has it had violations?
Lewiston Community Services District (EPA ID CA5301002). It reported 1 health-based violation to EPA in the five years to October 2026: a surface water treatment requirement (Interim Enhanced Surface Water Treatment Rule). 78% of systems its size had none. Its latest lead 90th percentile was 1.0 ppb (Jan 2026–Dec 2028), against a 15 ppb action level.
Who provides electricity in Lewiston?
Trinity Public Utilities Dist (Trinity Public Utilities Dist), a political subdivision utility.
What ZIP codes are in Lewiston?
96052. Census 2020 ZIP Code Tabulation Areas.
What school district is Lewiston in?
Trinity Alps Unified School District (9-12) and Lewiston Elementary School District.
How do I register to vote in Lewiston?
In California you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before). Elections here are run by the Trinity County Clerk - Elections. Check your registration at voterstatus.sos.ca.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 Nov 18, 2024 (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.