ZIP Code 59604 is located in Helena Montana. 59604 is entirely within Lewis and Clark County. Regionally, it is located in the Butte-Bozeman-Helena Area.
| ZIP Code Name | Helena |
| Primary County | Lewis and Clark County |
| ZIP Code Type | PO Box |
| Current Time | MDT |
| Coordinates | 46.60766220,-112.01320648 |
| Adjacent ZIP Codes | |
| Region | Butte-Bozeman-Helena Area |
| Metropolitan/Micropolitan Stat Area | Helena, MT |
| Time Zone | Mountain Daylight Time |
| IANA Timezone | America/Denver |