ZIP Code 89404 — Denio, NV
89404 is a standard (street delivery) ZIP code serving Denio, Nevada, in Humboldt County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 89404 at a glance
| ZIP code | 89404 |
|---|---|
| Primary city | Denio |
| State | Nevada (NV) |
| County | Humboldt FIPS 32013 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 36 |
| Coordinates | 41.807040, -118.888070 |
How ZIP+4 works in 89404
The four digits after the hyphen encode a delivery segment inside 89404. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 89404 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 89404.
| ZIP | City | Distance |
|---|---|---|
| 97710 | Fields, OR | 29.8 mi |
Questions about 89404
What is the ZIP+4 code for 89404?
89404 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 89404, you need to look up a specific street address to get them.
What city is 89404?
89404 is assigned to Denio, Nevada, in Humboldt County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.