Musselshell County Montana is covered by a total of 6 ZIP Codes. There are 3 ZIP Codes in Musselshell County that extend into adjacent counties (Fergus County, Golden Valley County, Stillwater County, and Yellowstone County). Of the ZIP codes within or partially within Musselshell County there are 3 Standard ZIP Codes and 2 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Musselshell County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Broadview | Standard | |||
| Lavina | Standard | |||
| Melstone | PO Box | |||
| Musselshell | Standard | |||
| Roundup | Standard | |||
| Roundup | PO Box |