Weather right now
Asking the National Weather Service…
Where 82604 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 82604 into a pocket calculator and turn it upside down: hOgZB — not quite a word, sorry.
- ➕ As a number, 82,604 = 2 × 2 × 107 × 193. Its digits add up to 20, a total 2,586 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10100001010101100 - 🏠 Its numerical neighbours: 82602 (Casper, WY, 18 mi away) and 82605 (Casper, WY, 20 mi away).
- 🔄 Backwards, 82604 becomes 40628, which is not a ZIP code at all.
- 👥 62 other ZIP codes are made of exactly the same digits (02468, 02648, 02864, 04268, 04286, 04628, …). The farthest-flung twin is 04628 in Dennysville, ME, 1,949 miles away.
- 🧭 Farther north than 82% of all ZIP codes, and farther west than 84%.
- 🎯472 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 82604 and you would come out at 42.91°S, 73.29°E — 468 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 01m.
- 📏 At 1,048.4 square miles of land, 82604 is bigger than 99% of ZIP codes — room for about 796 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 27,487This ZIP27,487 |
|---|---|
| Households | 11,015This ZIP11,015 |
| Housing units | 11,521This ZIP11,521 |
| Median age | 38.7This ZIP38.7Wyoming39.1US 38.9 |
| Median household income | $79,118This ZIP$79,118Wyoming$76,176US $80,734 |
| Median home value | $288,900This ZIP$288,900Wyoming$309,700US $332,700 |
| Median gross rent | $1,160This ZIP$1,160Wyoming$992US $1,413 |
| Bachelor's degree or higher | 27.4%This ZIP27.4% |
| Mean commute | 19.9 minThis ZIP19.9 min |
| Population density | 26.2 / sq miThis ZIP26.2 / sq mi |
Business and tax activity
| Business establishments | 689This ZIP689 |
|---|---|
| Employees | 6,894This ZIP6,894 |
| Annual payroll | $418,012,000This ZIP$418,012,000 |
| Tax returns filed | 11,980This ZIP11,980 |
| Total adjusted gross income | $985,184,000This ZIP$985,184,000 |
Land area
| Land area | 1,048.37 sq miThis ZIP1,048.37 sq mi |
|---|---|
| Water area | 5.28 sq miThis ZIP5.28 sq mi |
Other place names in 82604
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 82604
| ZIP | City | Distance |
|---|---|---|
82646 | Natrona, WY | 5.3 mi |
82648 | Powder River, WY | 16.5 mi |
82644 | Mills, WY | 17.6 mi |
82602 | Casper, WY | 17.8 mi |
82605 | Casper, WY | 20.2 mi |
82601 | Casper, WY | 21.4 mi |
82609 | Casper, WY | 28.2 mi |
82636 | Evansville, WY | 28.4 mi |
82638 | Hiland, WY | 29.4 mi |
82620 | Alcova, WY | 31.7 mi |
Find every ZIP code within 10 miles of 82604 →
Questions about this ZIP code
Where is ZIP code 82604?
82604 is in Casper, Wyoming, in Natrona County, part of the Casper, WY metropolitan area. Its published point location is 42.9149, -106.7073.
What county is 82604 in?
82604 lies in Natrona County.
What area code is 82604?
Casper uses area code 307, from NANPA's telephone records.
What time zone is 82604 in?
82604 uses America/Denver.
How many people live in 82604?
About 27,487 people live in ZIP code 82604, in 11,015 households, at 26.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 82604?
$79,118 a year, against $76,176 across Wyoming.
What ZIP codes are near 82604?
The closest are 82646 (5.3 mi), 82648 (16.5 mi), 82644 (17.6 mi), 82602 (17.8 mi) and 82605 (20.2 mi).
Is 82604 a PO Box ZIP code?
82604 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “82604 ZIP Code — Casper, Wyoming (Natrona County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/82604
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/82604.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.