The Old Diamond Inn, 1976
Denio’s story
75 years in pictures
The archive holds 12 old photos and papers going back to 1976 and 2 maps from 1966 on.
- 1951Denio is settled
DenioNV
A town of 36, settled in 1951.
Photo: Famartin · CC BY-SA 4.0
Is Denio a good place to live?
Denio’s median age is 61 years, above both the Nevada town median (40.2 years) and the median of U.S. towns (40.5 years). No town among the 43 in Nevada we compare has a higher share of households owning their home than Denio. Denio has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Small town
36 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Getting set up
Moving to Denio: who provides what
Denio is unincorporated, so Humboldt County and regional agencies provide most services.
PowerHarney Electric CoopEIAHIFLD · EIA
Internet1 providers100% of addresses get 100/20 MbpsFCC
Trash & county servicesHumboldt CountyHumboldt County provides services here
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.govWho runs elections hereHumboldt County ClerkHumboldt County; contacts on the Handbook page.FVAP, Nov 2021
ZIP code8940489404 100%Census 2020
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
The data
Ordered by what stands out in Denio.
Natural hazards
Denio faces a very high natural-hazard risk, led by wildfire
Expected storm and flood damage is higher than in 94% of U.S. communities.
94risk score of 100
FEMA risk score
WildfireDroughtInland flooding
FEMA National Risk Index · OpenFEMA
Schools
The schools Denio’s kids attend
Its public schools are run by the Humboldt school district. Its one school is below.
| School | Level | Students | Letter |
|---|---|---|---|
| DenioLargest public elementary schoolGrades PK–8 | Grades PK–8 | 6 | – |
NCES · EDFacts
Climate
Four seasons and hot summers in Denio
Denio has chilly winters and warm summers, with very little rain. Denio’s July high is 91°F, where Nevada’s towns sit at 94°F and U.S. towns at 85°F.
20″snow a winter
Typical low → high °F
Winter22–43°
Spring34–63°
Summer52–87°
Fall35–66°
Sep 18
typical first frost
May 30
typical last frost
+1.5°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020
Health
A larger share of adults binge drink in Denio than in most of Nevada or the rest of the country
20% of adults binge drink in Denio. Denio beats the Nevada average on 8 of 32 CDC measures and trails it on 3. 17% of adults smoke cigarettes in Denio.
| Denio | Nevada towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 20% | 16% | 16% |
| Yearly checkup (CDC PLACES) | 70% | 74% | 79% |
| Diabetes (CDC PLACES) | 8.6% | 12% | 12% |
| High blood pressure (CDC PLACES) | 29% | 35% | 35% |
32 measures vs. Nevada
8 better21 too close to call3 worse
| What stands out | Denio | NV |
|---|---|---|
| Fewer uninsured adults | 9.1% | 14.5% |
| Fewer adults facing housing insecurity | 10.6% | 15.6% |
| More older adults who have lost all their teeth | 23% | 11.6% |
Surprise Valley Community Hospital
84.4 mi away · emergency room
1 of 3
care shortages: primary care
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Keep exploring
Everything we know about Denio
12pages on Denio
The big questions
Out and about
After high school
Colleges nearby
None within 15 miles of Denio; the nearest are
Lassen Community CollegeCommunity college · Public · Susanville, CA149.4 mi$1,144 in-state tuitionOregon Institute of TechnologyUniversity or college · Public · Klamath Falls, OR162.4 mi$13,260 in-state tuition
About 0 of every 100 Denio residents are enrolled in college, against 5 across Nevada.
About Denio
Unincorporated community in Nevada, US
Denio is a census-designated place (CDP) in Humboldt County, Nevada, along the Oregon state line in the United States. The Denio post office was originally north of the state line in Harney County, Oregon, but the residents moved the building into Nevada in the mid-20th century. The population of the CDP, which is entirely in Nevada, was 34 at the 2020 census. Additional development considered to be Denio extends into Oregon. The CDP includes a post office, a community center, a library, and the Diamond Inn Bar, the center of the town's social life. Recreational activities in the Denio area include bird watching, photography, off-road vehicle use, fishing, recreational black opal mining, ro…
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 16 sq mi
- Elevation
- 4,207 ft
- ZIP code
- 89404
Questions about Denio
Short answers, built from the data on this page.
Is Denio, NV a good place to live?
Denio has fewer than 1,000 residents, too few for fair grades; the figures below are still real.