Natrona County, Wyoming ZIP Codes
- ZIP records
12 - Cities represented
10 - Sum of listed ZIP population estimates
79,937
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 | 82604 | Casper | 27,487 |
| 2 | 82601 | Casper | 26,721 |
| 3 | 82609 | Casper | 18,714 |
| 4 | 82636 | Evansville | 4,259 |
| 5 | 82644 | Mills | 2,098 |
| 6 | 82643 | Midwest | 267 |
| 7 | 82620 | Alcova | 164 |
| 8 | 82638 | Hiland | 116 |
| 9 | 82635 | Edgerton | 87 |
| 10 | 82648 | Powder River | 24 |
Cities in Natrona County
ZIP Directory
- ZIP 82601
- ZIP 82604
- ZIP 82609
- ZIP 82620
- ZIP 82630
- ZIP 82635
- ZIP 82636
- ZIP 82638
- ZIP 82643
- ZIP 82644
- ZIP 82646
- ZIP 82648
Browse all ZIP data for Wyoming
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.