First three digits · Wyoming
ZIP Codes Starting with
28 ZIP codes start with 820, sorted at the Cheyenne, WY (SCF 820) sectional center (USPS labeling list L005, effective October 1, 2026) in Wyoming: 22 residential ZIP codes across 3 counties and 6 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 820 mean?
The first digit, 8, is one of ten national areas (Arizona, Colorado, Idaho, New Mexico, Nevada, Utah and Wyoming). The first three, 820, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 820 to the Cheyenne, WY (SCF 820) facility. The last two digits pick the delivery area. By residents, the largest town names among the 820 ZIP codes are Cheyenne, Laramie, Pine Bluffs, Burns, Carpenter and Hillsdale.
The same facility sorts 3 prefixes, 62 ZIP codes in all: 820, 822, 823.
Where are the 820 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 820
| County | ||||||
|---|---|---|---|---|---|---|
| 82001 | Cheyenne | Laramie County | 38,168 | 692 | $75k | $317k |
| 82002 | Cheyenne | Laramie County | PO Box or unique | – | – | – |
| 82003 | Cheyenne | Laramie County | PO Box or unique | – | – | – |
| 82005 | Fe Warren Afb | Laramie County | 454 | 175 | – | – |
| 82006 | Cheyenne | Laramie County | PO Box or unique | – | – | – |
| 82007 | Cheyenne | Laramie County | 21,704 | 112 | $59k | $234k |
| 82008 | Cheyenne | Laramie County | PO Box or unique | – | – | – |
| 82009 | Cheyenne | Laramie County | 35,081 | 27 | $104k | $451k |
| 82010 | Cheyenne | Laramie County | PO Box or unique | – | – | – |
| 82050 | Albin | Laramie County | 302 | 2 | – | $163k |
| 82051 | Bosler | Albany County | 50 | 0 | – | – |
| 82052 | Buford | Albany County | no residents | 0 | – | – |
| 82053 | Burns | Laramie County | 1,656 | 8 | $116k | $260k |
| 82054 | Carpenter | Laramie County | 870 | 5 | $53k | $567k |
| 82055 | Centennial | Albany County | 521 | 9 | $111k | $289k |
| 82058 | Garrett | Albany County | 27 | 0 | – | – |
| 82059 | Granite Canon | Laramie County | 397 | 5 | $149k | $471k |
| 82060 | Hillsdale | Laramie County | 540 | 13 | – | $468k |
| 82061 | Horse Creek | Laramie County | no residents | 0 | – | – |
| 82063 | Jelm | Larimer County | 62 | 0 | $105k | $404k |
| 82070 | Laramie | Albany County | 20,144 | 20 | $69k | $339k |
| 82071 | Laramie | Albany County | PO Box or unique | – | – | – |
| 82072 | Laramie | Albany County | 16,931 | 90 | $54k | $324k |
| 82073 | Laramie | Albany County | 37 | 4 | – | – |
| 82081 | Meriden | Laramie County | 23 | 0 | – | – |
| 82082 | Pine Bluffs | Laramie County | 1,891 | 6 | $69k | $354k |
| 82083 | Rock River | Albany County | 288 | 1 | $49k | $126k |
| 82084 | Tie Siding | Albany County | 174 | 1 | – | $581k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.