ZIP Code 98380 — Seabeck, WA
98380 is a standard (street delivery) ZIP code serving Seabeck, Washington, in Kitsap 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 98380 at a glance
| ZIP code | 98380 |
|---|---|
| Primary city | Seabeck |
| State | Washington (WA) |
| County | Kitsap FIPS 53035 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Los_Angeles |
| Population | 5,471 |
| Coordinates | 47.574300, -122.902870 |
How ZIP+4 works in 98380
The four digits after the hyphen encode a delivery segment inside 98380. 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 98380 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 98380.
| ZIP | City | Distance |
|---|---|---|
| 98312 | Bremerton, WA | 6.8 mi |
| 98555 | Lilliwaup, WA | 7.7 mi |
| 98528 | Belfair, WA | 8.9 mi |
| 98320 | Brinnon, WA | 10.1 mi |
| 98383 | Silverdale, WA | 10.6 mi |
| 98588 | Tahuya, WA | 11.1 mi |
| 98314 | Bremerton, WA | 12.3 mi |
| 98337 | Bremerton, WA | 12.5 mi |
| 98311 | Bremerton, WA | 12.9 mi |
| 98367 | Port Orchard, WA | 13.1 mi |
| 98310 | Bremerton, WA | 13.3 mi |
| 98315 | Silverdale, WA | 13.5 mi |
Questions about 98380
What is the ZIP+4 code for 98380?
98380 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 98380, you need to look up a specific street address to get them.
What city is 98380?
98380 is assigned to Seabeck, Washington, in Kitsap 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?
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