First three digits · Alaska
ZIP Codes Starting with
20 ZIP codes start with 998, sorted at the Juneau, AK (SCF 998) sectional center (USPS labeling list L005, effective October 1, 2026) in Alaska: 15 residential ZIP codes across 7 counties and 5 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 998 mean?
The first digit, 9, is one of ten national areas (Alaska, California, Hawaii, Oregon, Washington, American Samoa, Guam, Northern Mariana Islands, Marshall Islands, Micronesia, Palau and Armed Forces Pacific). The first three, 998, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 998 to the Juneau, AK (SCF 998) facility. The last two digits pick the delivery area. By residents, the largest town names among the 998 ZIP codes are Juneau, Sitka, Petersburg, Douglas, Haines and Skagway.
998 is the only prefix the Juneau, AK (SCF 998) facility sorts.
Where are the 998 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 998
| County | ||||||
|---|---|---|---|---|---|---|
| 99801 | Juneau | Juneau City and Borough | 29,588 | 13 | $102k | $451k |
| 99802 | Juneau | Juneau City and Borough | PO Box or unique | – | – | – |
| 99803 | Juneau | Juneau City and Borough | PO Box or unique | – | – | – |
| 99811 | Juneau | Juneau City and Borough | PO Box or unique | – | – | – |
| 99812 | Juneau | Juneau City and Borough | PO Box or unique | – | – | – |
| 99820 | Angoon | Hoonah-Angoon Census Area | 480 | 1 | $45k | $184k |
| 99821 | Auke Bay | Juneau City and Borough | PO Box or unique | – | – | – |
| 99824 | Douglas | Juneau City and Borough | 2,190 | 1,251 | $92k | $407k |
| 99825 | Elfin Cove | Hoonah-Angoon Census Area | 28 | 0 | – | – |
| 99826 | Gustavus | Hoonah-Angoon Census Area | 594 | 11 | $64k | $331k |
| 99827 | Haines | Haines Borough | 2,168 | 1 | $85k | $290k |
| 99829 | Hoonah | Hoonah-Angoon Census Area | 862 | 9 | $81k | $329k |
| 99830 | Kake | Prince of Wales-Hyder Census Area | 629 | 2 | $52k | $125k |
| 99832 | Pelican | Hoonah-Angoon Census Area | 102 | 1 | $65k | $215k |
| 99833 | Petersburg | Petersburg Borough | 3,409 | 1 | $75k | $315k |
| 99835 | Sitka | Sitka City and Borough | 8,368 | 3 | $102k | $450k |
| 99836 | Port Alexander | Prince of Wales-Hyder Census Area | 50 | 14 | $58k | $119k |
| 99840 | Skagway | Skagway Municipality | 1,244 | 3 | $81k | $435k |
| 99841 | Tenakee Springs | Hoonah-Angoon Census Area | 163 | 0 | $54k | $258k |
| 99850 | Juneau | Haines Borough | no residents | 0 | – | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.