Plains Montana ZIP Codes
Plains holds a single ZIP code.
Every ZIP code in Plains
| ZIP code | County |
|---|---|
| 59859 | Sanders 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Plains codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Plains. 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 Plains ZIP code begins 598. Those first three digits identify the sectional center facility that processes mail for this part of Montana. Statewide that range covers 53 ZIP codes, so Plains accounts for 2% of it.
Every Montana ZIP prefix and the region it covers →
Area codes covering Plains
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Plains occupies.
Plains Montana area codes in full →
Where Plains's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Plains
| City | Distance | ZIP codes |
|---|---|---|
| Hot Springs Montana ZIP codes | 14 mi | 1 ZIP code |
| Superior Montana ZIP codes | 18 mi | 1 ZIP code |
| Thompson Falls Montana ZIP codes | 23 mi | 1 ZIP code |
| Alberton Montana ZIP codes | 37 mi | 1 ZIP code |
| Ronan Montana ZIP codes | 37 mi | 1 ZIP code |
| Polson Montana ZIP codes | 38 mi | 1 ZIP code |
| Missoula Montana ZIP codes | 57 mi | 8 ZIP codes |
| Kalispell Montana ZIP codes | 58 mi | 3 ZIP codes |
Straight-line distance between place reference points, not driving distance.