Bowerman Barn · Photo: NoeHill · CC BY-SA 3.0Living in Trinity Center, CA: what to set up and who to call
Trinity Center 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). Power in Trinity Center comes from Trinity Public Utilities Dist, a political subdivision utility rather than a private company.
I’m new in town
What to set up in Trinity Center, 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 Trinity Center.
Power comes from Trinity Public Utilities Dist
Trinity Public Utilities Dist (Trinity Public Utilities Dist), a political subdivision utility, serves all of Trinity Center.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Trinity Center M.w.c. water system
The Trinity Center M.w.c. water system supplies Trinity Center: about 75% of residents live in its service area. Trinity Knolls Mutual Water Company serves another 21%. About 4% 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 729 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 2021–Dec 2023, was 1.8 ppb, below the 15 ppb action level that applied. That’s higher than 68% 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. CA5310003.
Which providers serve Trinity Center
This card will list the home internet providers the FCC’s National Broadband Map shows in Trinity Center, 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 Trinity Center’s trash rules yet
Pickup rules, the dump and recycling in Trinity Center.
Where your child goes to school
Public school districts and the school path by grade.
Trinity Center is in two districts that split the grades: Trinity Alps Unified School District (9-12) and Trinity Center Elementary 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.
No town hall: the county runs things
Trinity Center 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.
Trinity Center is in ZIP code 96091
ZIP codes where Trinity Center residents live, with the share of the town in each.
| ZIP | Post office name | Share of Trinity Center | ZIP’s residents in Trinity Center |
|---|---|---|---|
| 96091 | Trinity Center, CA | 100% | 34% |
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 Trinity Center
Who supplies Trinity Center’s drinking water, and has it had violations?
The Trinity Center M.w.c. water system (EPA ID CA5310003). 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 1.8 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Trinity Center?
Trinity Public Utilities Dist (Trinity Public Utilities Dist), a political subdivision utility.
What ZIP codes are in Trinity Center?
96091. Census 2020 ZIP Code Tabulation Areas.
What school district is Trinity Center in?
Trinity Alps Unified School District (9-12) and Trinity Center Elementary School District.
How do I register to vote in Trinity Center?
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.