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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/MT/WHITLASH

Whitlash ZIP code, Montana

The ZIP code for Whitlash, MT is 59545, and its area code is 406.

USPS city name
1 ZIP code
Population
8
Area code
406
State
Montana

NANPA lists no telephone rate centre for Whitlash itself, so these are the area codes of the nearest one, Sweet Grass (14.5 miles). A town on an area-code boundary can differ from its neighbour.

ZIP codes addressed as Whitlash

ZIP codes with the USPS city name Whitlash
ZIP City Type Population Median income Median home
59545 Whitlash , MT Standard 55 $100,781 $291,700

Map of Whitlash ZIP codes

59545

The ZIP codes of Whitlash, MT, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Whitlash

The nearest larger towns are Sage Creek Colony (30 people, 13 mi), Eagle Creek Colony (44 people, 14 mi) and Sunburst (301 people, 30 mi).

More nearby: every ZIP code in Liberty County · Montana ZIP codes

Cite this page

zipcodes.pro. “Whitlash, MT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mt/whitlash

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