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2014-07-06 14 51 51 View of Denio, Nevada from Harney County Route 201 (Fields-Denio Road) a half mile north of the Oregon borderPhoto: Famartin · CC BY-SA 4.0
The Denio handbook

Living in Denio, NV: what to set up and who to call

Denio has no town government of its own, so Humboldt County runs its elections and most services, and its children attend Humboldt County School District. Power in Denio comes from Harney Electric Coop, a cooperative utility rather than a private company.

Which school will my kid attend?How do I register to vote?ZIP codes
Denio has no town government. It’s a census-designated place in Humboldt County, so the county and regional agencies provide most services. This page answers what we can; the same answers appear on Denio’s town page under “Getting set up”.

I’m new in town

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

PowerHarney Electric Coopcooperative utilityMore →Internet1 providers100% of addresses get 100/20 MbpsMore →Trash & dumpNot on file yetWe don’t have Denio’s trash rules yetMore →SchoolHumboldt County School DistrictWhich school depends on grade and addressMore →Register to voteOnlineRules from vote.govMore →ZIP code89404Where people live, not P.O. boxesMore →
Home services

Power, water and internet

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

Electricity

Power comes from Harney Electric Coop

Harney Electric Coop (Harney Electric Coop, Inc), a cooperative utility, serves all of Denio.

Start or move service: harneyelectric.org · (541) 573-2061

Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.

Internet

1 home internet providers serve Denio

100% of 40 addresses can get 100/20 Mbps; 100% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
Oregon-Idaho UtilitiesFiber, DSL100%1,000/1,000

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

Trash & recycling

We don’t have Denio’s trash rules yet

Pickup rules, the dump and recycling in Denio.

Trash, recycling and bulk pickupNot on fileDenio 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.

Denio kids go to
PK–8DenioHumboldt County School District
9–122 high schoolsDepends on your address

Denio is in Humboldt County 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

Denio is unincorporated, so Humboldt County is the local government.

Local governmentHumboldt CountyDenio is a census-designated place: no town hall of its ownCensus
Who runs elections hereHumboldt County ClerkElections here are run by Humboldt County (county election office). 50 W 5th St, 207, Winnemucca, NV 89445 · (775) 623-6343 · [email protected]FVAP, Nov 2021
Register to voteOnlineIn Nevada you can register online until 5 days before Election Day, in person up to and including Election Day, or by mail (postmarked 28 days before).vote.govCheck your registration and polling placenvsos.govThe state’s voter lookup

Election office: FVAP local election office directory, updated Nov 2021; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.

ZIP codes & area codes

Denio is in ZIP code 89404

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

ZIPPost office nameShare of DenioZIP’s residents in Denio
89404Denio, NV100%52%

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.

Nearest emergency roomSurprise Valley Community Hospital84.4 miles awayGet a library cardHumboldt County LibraryNearest branch: Denio Branch Library, 240 Pueblo Drive · (775) 941-0330

ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.

Questions about living in Denio

Who provides electricity in Denio?

Harney Electric Coop (Harney Electric Coop, Inc), a cooperative utility.

What internet providers serve Denio?

Oregon-Idaho Utilities (FCC, as of December 2025).

What ZIP codes are in Denio?

89404. Census 2020 ZIP Code Tabulation Areas.

What school district is Denio in?

Humboldt County School District.

How do I register to vote in Denio?

In Nevada you can register online until 5 days before Election Day, in person up to and including Election Day, or by mail (postmarked 28 days before). Elections here are run by the Humboldt County Clerk. Check your registration at nvsos.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 National Broadband Map, as of December 2025.