ZIP Code 98566 — Neilton, WA
98566 is a standard (street delivery) ZIP code serving Neilton, Washington, in Grays Harbor 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 98566 at a glance
| ZIP code | 98566 |
|---|---|
| Primary city | Neilton |
| State | Washington (WA) |
| County | Grays Harbor FIPS 53027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 299 |
| Coordinates | 47.396160, -123.959760 |
How ZIP+4 works in 98566
The four digits after the hyphen encode a delivery segment inside 98566. 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 98566 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 98566.
| ZIP | City | Distance |
|---|---|---|
| 98552 | Humptulips, WA | 5.7 mi |
| 98526 | Amanda Park, WA | 5.8 mi |
| 98575 | Quinault, WA | 8 mi |
| 98587 | Taholah, WA | 10.6 mi |
| 98562 | Moclips, WA | 15.7 mi |
| 98536 | Copalis Crossing, WA | 15.9 mi |
| 98571 | Pacific Beach, WA | 17.3 mi |
| 98550 | Hoquiam, WA | 17.8 mi |
| 98563 | Montesano, WA | 21 mi |
| 98535 | Copalis Beach, WA | 21.8 mi |
| 98560 | Matlock, WA | 25.1 mi |
| 98331 | Forks, WA | 27.1 mi |
Questions about 98566
What is the ZIP+4 code for 98566?
98566 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 98566, you need to look up a specific street address to get them.
What city is 98566?
98566 is assigned to Neilton, Washington, in Grays Harbor 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.