Morton Washington ZIP Codes
Morton holds a single ZIP code.
Every ZIP code in Morton
| ZIP code | County |
|---|---|
| 98356 | Lewis County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Morton codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Morton. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Morton ZIP code begins 983. Those first three digits identify the sectional center facility that processes mail for this part of Washington. Statewide that range covers 81 ZIP codes, so Morton accounts for 1% of it.
Every Washington ZIP prefix and the region it covers →
Area codes covering Morton
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Morton occupies.
Morton Washington area codes in full →
Where Morton's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Morton
| City | Distance | ZIP codes |
|---|---|---|
| Mossyrock Washington ZIP codes | 10 mi | 1 ZIP code |
| Eatonville Washington ZIP codes | 22 mi | 1 ZIP code |
| Toledo Washington ZIP codes | 28 mi | 1 ZIP code |
| Napavine Washington ZIP codes | 30 mi | 1 ZIP code |
| Rainier Washington ZIP codes | 30 mi | 1 ZIP code |
| Winlock Washington ZIP codes | 31 mi | 1 ZIP code |
| Yelm Washington ZIP codes | 32 mi | 1 ZIP code |
| Roy Washington ZIP codes | 32 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.