ZIP CodesZIP codes in Natrona County, Wyoming
Natrona County, Wyoming has 14 ZIP codes in this list, from 82601 to 82648. They cover 10 places, among them Casper, Alcova, Arminto and Edgerton.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 82601 | Casper | 479 | 42.846, -106.317 |
| 82602 | Casper | no area | 42.890, -106.357 |
| 82604 | Casper | 1,048 | 42.826, -106.390 |
| 82605 | Casper | no area | 42.867, -106.313 |
| 82609 | Casper | 65.2 | 42.841, -106.281 |
| 82620 | Alcova | 410 | 42.530, -106.760 |
| 82630 | Arminto | 186 | 43.179, -107.258 |
| 82635 | Edgerton | 7.0 | 43.407, -106.264 |
| 82636 | Evansville | 134 | 42.899, -106.175 |
| 82638 | Hiland | 69.1 | 43.115, -107.344 |
| 82643 | Midwest | 14.3 | 43.411, -106.280 |
| 82644 | Mills | 0.8 | 42.840, -106.366 |
| 82646 | Natrona | 51.5 | 43.030, -106.809 |
| 82648 | Powder River | 188 | 43.032, -106.987 |
The ZIP code areas of Natrona County add up to about 2,654 square miles of land (6,873 sq km) as the Census Bureau draws them. The largest is 82604 (Casper), with 1,048 square miles.
Places with more than one code here: Casper (5 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Casper, WY 82601.
- 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.