Custer County, Montana ZIP Codes
- ZIP records
4 - Cities represented
4 - Sum of listed ZIP population estimates
12,034
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 | 59301 | Miles City | 11,643 |
| 2 | 59336 | Ismay | 220 |
| 3 | 59338 | Kinsey | 136 |
| 4 | 59345 | Powderville | 35 |
Cities in Custer County
ZIP Directory
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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.