ZIP Code 97838 — Hermiston, OR
97838 is a standard (street delivery) ZIP code serving Hermiston, Oregon, in Umatilla 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 97838 at a glance
| ZIP code | 97838 |
|---|---|
| Primary city | Hermiston |
| State | Oregon (OR) |
| County | Umatilla FIPS 41059 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 28,512 |
| Coordinates | 45.852660, -119.288780 |
How ZIP+4 works in 97838
The four digits after the hyphen encode a delivery segment inside 97838. 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 97838 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 97838.
| ZIP | City | Distance |
|---|---|---|
| 97882 | Umatilla, OR | 4.8 mi |
| 97875 | Stanfield, OR | 7.2 mi |
| 99346 | Plymouth, WA | 12 mi |
| 97844 | Irrigon, OR | 12.5 mi |
| 97826 | Echo, OR | 14 mi |
| 99337 | Kennewick, WA | 17.3 mi |
| 99345 | Paterson, WA | 18.7 mi |
| 99338 | Kennewick, WA | 22.2 mi |
| 99363 | Wallula, WA | 23.2 mi |
| 97839 | Lexington, OR | 23.9 mi |
| 97818 | Boardman, OR | 24.7 mi |
| 97835 | Helix, OR | 25 mi |
Questions about 97838
What is the ZIP+4 code for 97838?
97838 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 97838, you need to look up a specific street address to get them.
What city is 97838?
97838 is assigned to Hermiston, Oregon, in Umatilla 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.