Big Sandy Montana ZIP Codes
Big Sandy holds a single ZIP code.
Every ZIP code in Big Sandy
| ZIP code | County |
|---|---|
| 59520 | Chouteau 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Big Sandy codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Big Sandy. 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 Big Sandy ZIP code begins 595. Those first three digits identify the sectional center facility that processes mail for this part of Montana. Statewide that range covers 23 ZIP codes, so Big Sandy accounts for 4% of it.
Every Montana ZIP prefix and the region it covers →
Area codes covering Big Sandy
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 Big Sandy occupies.
Big Sandy Montana area codes in full →
Where Big Sandy's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Big Sandy
| City | Distance | ZIP codes |
|---|---|---|
| Hingham Montana ZIP codes | 30 mi | 1 ZIP code |
| Havre Montana ZIP codes | 32 mi | 1 ZIP code |
| Fort Benton Montana ZIP codes | 35 mi | 1 ZIP code |
| Geraldine Montana ZIP codes | 41 mi | 1 ZIP code |
| Chester Montana ZIP codes | 45 mi | 1 ZIP code |
| Chinook Montana ZIP codes | 49 mi | 1 ZIP code |
| Winifred Montana ZIP codes | 55 mi | 1 ZIP code |
| Denton Montana ZIP codes | 60 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.