Natrona County, WY ZIP codes
Natrona County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Natrona County ZIP codes
The ZIP codes of Natrona County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Natrona County in numbers
About 79,977 people live in Natrona County, in 33,886 households, the 2nd most populous of Wyoming's 23 counties. The median household income is $72,156 a year, 5% below the Wyoming median of $76,176 (US: $80,734). The median owner-occupied home is valued at $273,000 (12% below the Wyoming median), and median gross rent is $1,016 a month. The median age is 38.4; 27.7% of adults 25 and over hold a bachelor's degree or higher (30.6% across Wyoming); the average commute takes 19 minutes.
| Population | 79,977 |
|---|---|
| Households | 33,886 |
| Median age | 38.4 |
| Median household income | $72,156 |
| Median home value | $273,000 |
| Median gross rent | $1,016 |
| Bachelor's degree or higher | 27.7% |
| Mean commute | 19.0 min |
| Population density | 15 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Natrona County
| Town | ZIP codes | Population |
|---|---|---|
| Casper | 5 | 58,839 |
| Mills | 1 | 4,390 |
| Evansville | 1 | 2,779 |
| Midwest | 1 | 267 |
| Hiland | 1 | 116 |
| Alcova | 1 | 99 |
| Edgerton | 1 | 87 |
| Powder River | 1 | 24 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Natrona County.
Not sure you are in Natrona County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Natrona County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
82601 | Casper , WY | Standard | 26,721 | $67,642 | $249,100 |
82602 | Casper , WY | No street area | — | — | — |
82604 | Casper , WY | Standard | 27,487 | $79,118 | $288,900 |
82605 | Casper , WY | No street area | — | — | — |
82609 | Casper , WY | Standard | 18,714 | $71,010 | $293,900 |
82620 | Alcova , WY | Standard | 164 | — | — |
82630 | Arminto , WY | Standard | 0 | — | — |
82635 | Edgerton , WY | Standard | 87 | $34,886 | — |
82636 | Evansville , WY | Standard | 4,259 | $86,638 | $299,300 |
82638 | Hiland , WY | Standard | 116 | — | — |
82643 | Midwest , WY | Standard | 267 | $77,800 | $63,900 |
82644 | Mills , WY | Standard | 2,098 | $53,750 | $175,900 |
82646 | Natrona , WY | Standard | 0 | — | — |
82648 | Powder River , WY | Standard | 24 | — | — |
Cite this page
zipcodes.pro. “Natrona County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/wy/county/natrona
Underlying data is public domain or openly licensed — sources, vintages and licences.