Flat Willow Colony ZIP codes, Montana
No ZIP code is named for Flat Willow Colony, MT; addresses there use a neighbouring town's name. The ZIP code covering it is 59072. Its area code is 406.
- USPS city name
- 0 ZIP codes
- Overlapping the city
- 1 more
- Population
- 0
- Area code
- 406
- County
- Musselshell County
- State
- Montana
NANPA lists no telephone rate centre for Flat Willow Colony itself, so these are the area codes of the nearest one, Roundup (0.0 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes covering Flat Willow Colony
These ZIP codes cover part of Flat Willow Colony but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
59072 | Roundup , MT | Standard | 4,690 | $59,594 | $241,200 |
Map of Flat Willow Colony ZIP codes
The ZIP codes of Flat Willow Colony, 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.
More nearby: every ZIP code in Musselshell County · Montana ZIP codes
Cite this page
zipcodes.pro. “Flat Willow Colony, MT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mt/flat-willow-colony
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