Lewistown Montana ZIP Codes
Lewistown holds a single ZIP code.
Every ZIP code in Lewistown
| ZIP code | County |
|---|---|
| 59457 | Fergus 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Lewistown codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Lewistown. 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 Lewistown ZIP code begins 594. Those first three digits identify the sectional center facility that processes mail for this part of Montana. Statewide that range covers 64 ZIP codes, so Lewistown accounts for 2% of it.
Every Montana ZIP prefix and the region it covers →
Area codes covering Lewistown
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 Lewistown occupies.
Lewistown Montana area codes in full →
Where Lewistown's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Lewistown
| City | Distance | ZIP codes |
|---|---|---|
| Moore Montana ZIP codes | 13 mi | 1 ZIP code |
| Hobson Montana ZIP codes | 20 mi | 1 ZIP code |
| Judith Gap Montana ZIP codes | 29 mi | 1 ZIP code |
| Denton Montana ZIP codes | 30 mi | 1 ZIP code |
| Grass Range Montana ZIP codes | 31 mi | 1 ZIP code |
| Winifred Montana ZIP codes | 36 mi | 1 ZIP code |
| Stanford Montana ZIP codes | 37 mi | 1 ZIP code |
| Harlowton Montana ZIP codes | 46 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.