Denio, NV is a city located in Humboldt County, Nevada and has a land area of 426.55 square miles (1,104.76 km2). The water area for the city is 2.80 square miles or 7.25 km2. There is one unique zip code in Denio, Nevada and it is 89404. The area code(s) for Denio is 775.
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