ZIP CodesZIP codes in Humboldt County, Nevada
Humboldt County, Nevada has 8 ZIP codes in this list, from 89404 to 89446. They cover 7 places, among them Winnemucca, Denio, Golconda and Mc Dermitt.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 89404 | Denio | 427 | 41.990, -118.634 |
| 89414 | Golconda | 568 | 40.953, -117.489 |
| 89421 | Mc Dermitt | 928 | 41.971, -117.674 |
| 89425 | Orovada | 637 | 41.665, -117.908 |
| 89426 | Paradise Valley | 166 | 41.506, -117.573 |
| 89438 | Valmy | 2.5 | 40.793, -117.127 |
| 89445 | Winnemucca | 2,818 | 40.966, -117.747 |
| 89446 | Winnemucca | 7.5 | 41.076, -117.760 |
The ZIP code areas of Humboldt County add up to about 5,553 square miles of land (14,383 sq km) as the Census Bureau draws them. The largest is 89445 (Winnemucca), with 2,818 square miles.
Places with more than one code here: Winnemucca (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Denio, NV 89404.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.