ZIP Code 97431 — Dexter, OR
97431 is a standard (street delivery) ZIP code serving Dexter, Oregon, in Lane 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 97431 at a glance
| ZIP code | 97431 |
|---|---|
| Primary city | Dexter |
| State | Oregon (OR) |
| County | Lane FIPS 41039 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 2,366 |
| Coordinates | 43.871350, -122.815760 |
How ZIP+4 works in 97431
The four digits after the hyphen encode a delivery segment inside 97431. 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 97431 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 97431.
| ZIP | City | Distance |
|---|---|---|
| 97452 | Lowell, OR | 4.7 mi |
| 97455 | Pleasant Hill, OR | 8 mi |
| 97438 | Fall Creek, OR | 10.1 mi |
| 97426 | Creswell, OR | 10.8 mi |
| 97434 | Dorena, OR | 14.3 mi |
| 97424 | Cottage Grove, OR | 14.7 mi |
| 97478 | Springfield, OR | 15 mi |
| 97477 | Springfield, OR | 16.2 mi |
| 97403 | Eugene, OR | 16.3 mi |
| 97492 | Westfir, OR | 17.2 mi |
| 97405 | Eugene, OR | 18.4 mi |
| 97401 | Eugene, OR | 19 mi |
Questions about 97431
What is the ZIP+4 code for 97431?
97431 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 97431, you need to look up a specific street address to get them.
What city is 97431?
97431 is assigned to Dexter, Oregon, in Lane 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.