ZIP Code 98602 — Appleton, WA
98602 is a standard (street delivery) ZIP code serving Appleton, Washington, in Klickitat 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 98602 at a glance
| ZIP code | 98602 |
|---|---|
| Primary city | Appleton |
| State | Washington (WA) |
| County | Klickitat FIPS 53039 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 320 |
| Coordinates | 45.869300, -121.279660 |
How ZIP+4 works in 98602
The four digits after the hyphen encode a delivery segment inside 98602. 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 98602 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 98602.
| ZIP | City | Distance |
|---|---|---|
| 98670 | Wahkiacus, WA | 6.4 mi |
| 98619 | Glenwood, WA | 7.5 mi |
| 98628 | Klickitat, WA | 8.8 mi |
| 98635 | Lyle, WA | 9.3 mi |
| 98672 | White Salmon, WA | 10.1 mi |
| 98623 | Husum, WA | 11.3 mi |
| 98650 | Trout Lake, WA | 13.8 mi |
| 98613 | Centerville, WA | 16.8 mi |
| 98617 | Dallesport, WA | 17 mi |
| 97040 | Mosier, OR | 17.5 mi |
| 98651 | Underwood, WA | 17.5 mi |
| 98605 | Bingen, WA | 18.4 mi |
Questions about 98602
What is the ZIP+4 code for 98602?
98602 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 98602, you need to look up a specific street address to get them.
What city is 98602?
98602 is assigned to Appleton, Washington, in Klickitat 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.