ZIP code 89421
Where is ZIP code 89421?
Mc Dermitt, Nevada
Humboldt County · PO Box only ZIP code
ZIP code 89421 belongs to Mc Dermitt, Nevada in Humboldt County. 89421 is a PO Box only ZIP code: it is used for post office boxes at the Mc Dermitt post office, not for street addresses. It is in the Pacific Time zone and uses area codes 458, 541 and 775. About 330 people live in the 89421 area, where the median household income is $26,000. The closest ZIP codes are 89425 (Orovada, 15.1 mi south), 89426 (Paradise Valley, 33 mi southeast) and 89404 (Denio, 34.8 mi west).
| ZIP code | 89421 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Mc Dermitt |
| Also accepted | Fort Mcdermitt, Ft Mcdermitt |
| State | Nevada (NV) |
| County | Humboldt County |
| Time zone | Pacific Time · now |
| Area codes | 458, 541, 775 |
| Coordinates | 41.8787, -117.9733 map |
| 3-digit prefix | 894 |
Population and income in 89421
| Population | 330 · lower than 84% of Nevada ZIP codes |
|---|---|
| People per square mile | 0 · lower than 97% of Nevada ZIP codes |
| Median age | 52.1 years · higher than 75% of Nevada ZIP codes |
| Men / women | 35% / 66% |
| Median household income | $26,000 · lower than 100% of Nevada ZIP codes |
| Income per person | $24,053 |
| Below the poverty line | 42% |
| Bachelor’s degree or higher | 12% of adults 25+ |
| Median home value | $71,400 · lower than 97% of Nevada ZIP codes |
| Housing units | 209 |
| Households | 146 (2.26 people on average) |
| Owners / renters | 77% / 23% |
| Land area | 928.3 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 89421. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 89421
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 89425 | Orovada, NV | 15.1 mi S | Standard |
| 89426 | Paradise Valley, NV | 33 mi SE | PO Box only |
| 89404 | Denio, NV | 34.8 mi W | PO Box only |
| 89445 | Winnemucca, NV | 50.4 mi S | Standard |
| 97710 | Fields, OR | 53.2 mi NW | Standard |
| 89446 | Winnemucca, NV | 63.8 mi S | PO Box only |
| 97721 | Princeton, OR | 68 mi NW | Standard |
| 89414 | Golconda, NV | 70.6 mi SE | Standard |
| 97902 | Arock, OR | 75.6 mi N | PO Box only |
| 97910 | Jordan Valley, OR | 77.7 mi NE | Standard |
| 97736 | Frenchglen, OR | 82.5 mi NW | Standard |
| 97722 | Diamond, OR | 82.7 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 89421 or measure the distance to another ZIP code.
How to address mail to 89421
PO BOX 123
MC DERMITT NV 89421
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts FORT MCDERMITT and FT MCDERMITT as the city name for 89421. Avoid Cordero and Mcdermitt: USPS doesn’t recognize them as the city for this ZIP code. Adding the 4-digit ZIP+4 code (89421-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 89421?
- 89421 is a Mc Dermitt, Nevada ZIP code. Fort Mcdermitt and Ft Mcdermitt are also accepted as the city name.
- What county is 89421 in?
- ZIP code 89421 is in Humboldt County, Nevada.
- What time zone is ZIP code 89421 in?
- 89421 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 89421?
- Phone numbers in ZIP code 89421 use area codes 458, 541 and 775.
- What is the population of ZIP code 89421?
- About 330 people live in ZIP code 89421, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 89421?
- The median household income in 89421 is $26,000 a year, lower than 100% of Nevada ZIP codes.
- Can I use 89421 for a street address?
- No. 89421 is only for PO Boxes. Street addresses in Mc Dermitt use another ZIP code.
- What ZIP codes are near 89421?
- The nearest ZIP codes to 89421 are 89425 (Orovada, 15.1 miles), 89426 (Paradise Valley, 33 miles), 89404 (Denio, 34.8 miles) and 89445 (Winnemucca, 50.4 miles).