ZIP Code 97818 — Boardman, OR
97818 is a standard (street delivery) ZIP code serving Boardman, Oregon, in Morrow 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 97818 at a glance
| ZIP code | 97818 |
|---|---|
| Primary city | Boardman |
| State | Oregon (OR) |
| County | Morrow FIPS 41049 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 5,610 |
| Coordinates | 45.756700, -119.784440 |
How ZIP+4 works in 97818
The four digits after the hyphen encode a delivery segment inside 97818. 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 97818 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 97818.
| ZIP | City | Distance |
|---|---|---|
| 99345 | Paterson, WA | 13.8 mi |
| 97844 | Irrigon, OR | 14.2 mi |
| 97839 | Lexington, OR | 14.9 mi |
| 97843 | Ione, OR | 18 mi |
| 99322 | Bickleton, WA | 21 mi |
| 97882 | Umatilla, OR | 23.4 mi |
| 97812 | Arlington, OR | 24.2 mi |
| 97838 | Hermiston, OR | 24.8 mi |
| 99350 | Prosser, WA | 27 mi |
| 97826 | Echo, OR | 27.8 mi |
| 99356 | Roosevelt, WA | 28.3 mi |
| 98935 | Mabton, WA | 29.4 mi |
Questions about 97818
What is the ZIP+4 code for 97818?
97818 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 97818, you need to look up a specific street address to get them.
What city is 97818?
97818 is assigned to Boardman, Oregon, in Morrow 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.