First three digits · Wyoming
ZIP Codes Starting with
10 ZIP codes start with 825, sorted at the Casper, WY (SCF 826) sectional center (USPS labeling list L005, effective October 1, 2026) in Wyoming: 9 residential ZIP codes across 1 county and 1 PO Box or single-organization code (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 825 mean?
The first digit, 8, is one of ten national areas (Arizona, Colorado, Idaho, New Mexico, Nevada, Utah and Wyoming). The first three, 825, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 825 to the Casper, WY (SCF 826) facility. The last two digits pick the delivery area. By residents, the largest town names among the 825 ZIP codes are Riverton, Lander, Dubois, Fort Washakie, Pavillion and Arapahoe.
The same facility sorts 5 prefixes, 85 ZIP codes in all: 824, 825, 826, 827, 828.
Where are the 825 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 825
| County | ||||||
|---|---|---|---|---|---|---|
| 82501 | Riverton | Fremont County | 19,413 | 28 | $60k | $238k |
| 82510 | Arapahoe | Fremont County | 875 | 14 | $55k | $163k |
| 82512 | Crowheart | Fremont County | 294 | 0 | – | – |
| 82513 | Dubois | Fremont County | 1,627 | 1 | $66k | $383k |
| 82514 | Fort Washakie | Fremont County | 1,192 | 7 | $32k | $92k |
| 82515 | Hudson | Fremont County | 437 | 50 | $53k | $181k |
| 82516 | Kinnear | Fremont County | 299 | 1 | $40k | – |
| 82520 | Lander | Fremont County | 13,266 | 9 | $77k | $338k |
| 82523 | Pavillion | Fremont County | 945 | 2 | $57k | $238k |
| 82524 | Saint Stephens | Fremont County | PO Box or unique | – | – | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.