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Chinook Montana ZIP Codes

Chinook holds a single ZIP code.

Every ZIP code in Chinook

The complete list of Chinook, Montana ZIP codes with the county each falls in.
ZIP codeCounty
59523Blaine 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Chinook codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Chinook. 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 Chinook 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 Chinook accounts for 4% of it.

Every Montana ZIP prefix and the region it covers →

Area codes covering Chinook

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 Chinook occupies.

Chinook Montana area codes in full →

Where Chinook's ZIP codes sit

Each point is one Chinook ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Chinook

The closest places to Chinook with their own ZIP code list, nearest first.
CityDistanceZIP codes
Havre Montana ZIP codes21 mi1 ZIP code
Harlem Montana ZIP codes21 mi1 ZIP code
Dodson Montana ZIP codes47 mi1 ZIP code
Big Sandy Montana ZIP codes49 mi1 ZIP code
Hingham Montana ZIP codes54 mi1 ZIP code
Malta Montana ZIP codes64 mi1 ZIP code
Winifred Montana ZIP codes71 mi1 ZIP code
Chester Montana ZIP codes80 mi1 ZIP code

Straight-line distance between place reference points, not driving distance.