12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 59729 | Ennis | 3,258 |
| 59749 | Sheridan | 2,029 |
| 59716 | Big Sky | 1,795 |
| 59754 | Twin Bridges | 980 |
| 59735 | Harrison | 440 |
| 59740 | McAllister | 428 |
| 59710 | Alder | 226 |
| 59720 | Cameron | 220 |
| 59751 | Silver Star | 215 |
| 59755 | Virginia City | 170 |
| 59747 | Pony | 122 |
| 59745 | Norris | 98 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Madison County, Montana (US Census).