Living in Mad River, CA: what to set up and who to call
Mad River has no town government of its own, so Trinity County runs its elections and most services, and its children attend Southern Trinity Joint Unified School District. Power in Mad River 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 Mad River, 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 Mad River.
Power comes from Trinity Public Utilities Dist
Trinity Public Utilities Dist (Trinity Public Utilities Dist), a political subdivision utility, serves all of Mad River.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Which providers serve Mad River
This card will list the home internet providers the FCC’s National Broadband Map shows in Mad River, 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 Mad River’s trash rules yet
Pickup rules, the dump and recycling in Mad River.
Where your child goes to school
Public school districts and the school path by grade.
Mad River is in Southern Trinity Joint Unified 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
Mad River 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.
Mad River spans 2 ZIP codes
ZIP codes where Mad River residents live, with the share of the town in each.
| ZIP | Post office name | Share of Mad River | ZIP’s residents in Mad River |
|---|---|---|---|
| 95552 | Mad River, CA | 61% | 40% |
| 95526 | Bridgeville, CA | 39% | 27% |
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 Mad River
Who provides electricity in Mad River?
Trinity Public Utilities Dist (Trinity Public Utilities Dist), a political subdivision utility.
What ZIP codes are in Mad River?
95552 (61%), 95526 (39%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Mad River in?
Southern Trinity Joint Unified School District.
How do I register to vote in Mad River?
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.
- 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.