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The Hiouchi handbook

Living in Hiouchi, CA: what to set up and who to call

Hiouchi has no town government of its own, so Del Norte County runs its elections and most services, and its children attend Del Norte County Unified School District. Tap water in most of Hiouchi comes from the Big Rock C.s.d. water system, which has a clean five-year EPA record (about 22% of systems its size had a health-based violation) and a latest lead result below detection.

Hiouchi has no town government. It’s a census-designated place in Del Norte County, so the county and regional agencies provide most services. This page answers what we can; the same answers appear on Hiouchi’s town page under “Getting set up”.

I’m new in town

What to set up in Hiouchi, and who provides it. Tap an answer for the details and where they come from.

Home services

Power, water and internet

Who to call to start service at a new address in Hiouchi.

Electricity

Power comes from Pacific Power

Pacific Power (PacifiCorp), an investor-owned utility, serves all of Hiouchi. Its homes paid an average of 24.2¢ per kWh in 2025, about $200 a month (its average across California).

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.

Drinking water · reported to EPA

Water comes from Big Rock C.s.d. water system

The Big Rock C.s.d. water system supplies Hiouchi: about 79% of residents live in its service area. About 21% 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 513 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.

Lead, 90th percentile0.0 ppb
015 ppb action level20

The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.8 ppb. 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. Violations are counted by the start of their compliance period. CA0800532.

Internet

3 home internet providers serve Hiouchi

97% of 165 addresses can get 100/20 Mbps; 0% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
SpectrumCable97%1,000/1,000
FrontierDSL2%10/1
T-MobileFixed wireless38%100/20

FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.

Trash & recycling

We don’t have Hiouchi’s trash rules yet

Pickup rules, the dump and recycling in Hiouchi.

Trash, recycling and bulk pickupNot on fileHiouchi has no town government of its own, so look for trash and recycling rules on the county’s site.
Schools

Where your child goes to school

Public school districts and the school path by grade.

Hiouchi kids go to
K–58 elementary schoolsDepends on your address
6–84 middle schoolsDepends on your address
9–12Del Norte Highin Crescent City

Hiouchi is in Del Norte County 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.

Government & voting

No town hall: the county runs things

Hiouchi is unincorporated, so Del Norte County is the local government.

Local governmentDel Norte CountyHiouchi is a census-designated place: no town hall of its ownCensus
Who runs elections hereDel Norte County Clerk-Recorder-ElectionsElections here are run by Del Norte County (county election office). 981 H St, Rm 160, Crescent City, CA 95531-3457 · (707) 465-0383 · [email protected]FVAP, Jun 2023
Register to voteOnlineIn 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).vote.govCheck your registration and polling placevoterstatus.sos.ca.govThe state’s voter lookup

Election office: FVAP local election office directory, updated Jun 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.

ZIP codes & area codes

Hiouchi is in ZIP code 95531

ZIP codes where Hiouchi residents live, with the share of the town in each.

ZIPPost office nameShare of HiouchiZIP’s residents in Hiouchi
95531Crescent City, CA100%1%

Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.

Everyday places

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 Hiouchi

Who supplies Hiouchi’s drinking water, and has it had violations?

The Big Rock C.s.d. water system (EPA ID CA0800532). 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 2023–Dec 2025), against a 15 ppb action level.

Who provides electricity in Hiouchi?

Pacific Power (PacifiCorp), an investor-owned utility. Its homes paid about 24.2¢ per kWh in 2025 (EIA).

What internet providers serve Hiouchi?

Spectrum, Frontier, T-Mobile (FCC, as of December 2025).

What ZIP codes are in Hiouchi?

95531. Census 2020 ZIP Code Tabulation Areas.

What school district is Hiouchi in?

Del Norte County Unified School District.

How do I register to vote in Hiouchi?

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 Del Norte County Clerk-Recorder-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 National Broadband Map, as of December 2025.