Steilacoom zipcode
| City | Steilacoom |
| ZIP Code | 98388 |
| Type | Standard |
| State Code | WA |
| State | Washington |
ZIP code of Steilacoom is 98388. This place is located in Washington state in US. To send any postal service to Steilacoom, you must use 98388 zipcode.
You should avoid following 3 city names of Washington to be used with the ZIP code 98388.
- Ketron Is, WA
- Ketron Island, WA
- Mcneil Island, WA