ZIP CodesZIP codes in Lewis and Clark County, Montana
Lewis and Clark County, Montana has 15 ZIP codes in this list, from 59410 to 59648. They cover 8 places, among them Helena, Augusta, Canyon Creek and East Helena.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 59410 | Augusta | 1,159 | 47.454, -112.388 |
| 59601 | Helena | 130 | 46.613, -112.021 |
| 59602 | Helena | 524 | 46.707, -111.958 |
| 59604 | Helena | no area | 46.667, -111.969 |
| 59620 | Helena | no area | 46.593, -112.036 |
| 59623 | Helena | 0.0 | 46.590, -112.040 |
| 59624 | Helena | no area | 46.593, -112.036 |
| 59625 | Helena | 0.1 | 46.602, -112.041 |
| 59626 | Helena | no area | 46.593, -112.036 |
| 59633 | Canyon Creek | 208 | 46.763, -112.279 |
| 59635 | East Helena | 79.5 | 46.597, -111.905 |
| 59636 | Fort Harrison | 3.3 | 46.620, -112.110 |
| 59639 | Lincoln | 673 | 46.958, -112.665 |
| 59640 | Marysville | 20.2 | 46.750, -112.299 |
| 59648 | Wolf Creek | 705 | 47.086, -112.148 |
The ZIP code areas of Lewis and Clark County add up to about 3,502 square miles of land (9,069 sq km) as the Census Bureau draws them. The largest is 59410 (Augusta), with 1,159 square miles.
Places with more than one code here: Helena (8 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Augusta, MT 59410.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.