ZIP code · Mc Dermitt · Nevada · United States
ZIP code 89421 — Mc Dermitt
ZIP code 89421 serves Mc Dermitt, Nevada.
- Postal code
- 89421Single source Value from one source, not cross-checked.
- City
- Mc Dermitt
- County
- Humboldt FIPS 32013
- State
- Nevada
- Country
- United States
- Coordinates
- 41.9708, -117.6737 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 405 (ZCTA, ACS 5-year)
- Population density
- 0 / sq mi
- Land area
- 928.3 sq mi (2,404.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $17,500
- Per-capita income
- $20,388
- Median age
- 48.6
- Households
- 210
- Housing units
- 269
- Median home value
- $80,400
- Congressional district
- NV-2 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Area code
- 775Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 89421 with another ZIP · ZIPs within 25 miles · distance from 89421
Nearby localities
Map of ZIP code 89421
Climate — monthly normals
Warmest month Jul (avg high 92°F), coldest Dec (avg low 16°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 41 | 46 | 55 | 61 | 71 | 81 | 92 | 90 | 81 | 66 | 51 | 40 |
| Avg low °F | 17 | 21 | 25 | 29 | 37 | 43 | 49 | 46 | 37 | 27 | 22 | 16 |
| Precip in | 0.7 | 0.5 | 0.6 | 1.0 | 1.2 | 0.9 | 0.3 | 0.2 | 0.4 | 0.7 | 0.6 | 0.8 |
NOAA 1991–2020 climate normals from the nearest station: MCDERMITT (2.9 mi) · NOAA NCEI
Places in ZIP 89421
- 4 schools
- 1 doctors & dentists
- 1 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 1 post offices
- 2 gas stations
- 1 EV charging stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page