ZIP Code 98505 — Olympia, WA
98505 is a standard (street delivery) ZIP code serving Olympia, Washington, in Thurston 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 98505 at a glance
| ZIP code | 98505 |
|---|---|
| Primary city | Olympia |
| State | Washington (WA) |
| County | Thurston FIPS 53067 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 881 |
| Coordinates | 47.073210, -122.973580 |
How ZIP+4 works in 98505
The four digits after the hyphen encode a delivery segment inside 98505. 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 98505 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.
Other ZIP codes in Olympia
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 98505.
| ZIP | City | Distance |
|---|---|---|
| 98502 | Olympia, WA | 2.7 mi |
| 98506 | Olympia, WA | 5.1 mi |
| 98501 | Olympia, WA | 8.2 mi |
| 98503 | Lacey, WA | 8.8 mi |
| 98512 | Olympia, WA | 8.9 mi |
| 98516 | Olympia, WA | 9.1 mi |
| 98513 | Olympia, WA | 12.7 mi |
| 98351 | Longbranch, WA | 13.2 mi |
| 98303 | Anderson Island, WA | 14 mi |
| 98557 | Mccleary, WA | 14 mi |
| 98327 | Dupont, WA | 14.8 mi |
| 98584 | Shelton, WA | 14.9 mi |
Questions about 98505
What is the ZIP+4 code for 98505?
98505 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 98505, you need to look up a specific street address to get them.
What city is 98505?
98505 is assigned to Olympia, Washington, in Thurston 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.