Lewis and Clark County, Montana ZIP Codes
- ZIP records
11 - Cities represented
8 - Sum of listed ZIP population estimates
73,928
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 59601 | Helena | 31,728 |
| 2 | 59602 | Helena | 30,754 |
| 3 | 59635 | East Helena | 8,292 |
| 4 | 59639 | Lincoln | 1,021 |
| 5 | 59625 | Helena | 663 |
| 6 | 59410 | Augusta | 520 |
| 7 | 59648 | Wolf Creek | 486 |
| 8 | 59633 | Canyon Creek | 272 |
| 9 | 59640 | Marysville | 160 |
| 10 | 59636 | Fort Harrison | 32 |
Cities in Lewis and Clark County
ZIP Directory
Browse all ZIP data for Montana
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.