Postal reference / United States
99901Ketchikan, Alaska
ZIP code 99901 is a United States postal code for Ketchikan, Alaska. Its county association is Ketchikan Gateway County. The map reference point is at 55.372, -131.6832.
- State / territory
- Alaska
- Recorded place name
- Ketchikan
- County association
- Ketchikan Gateway
- Estimated coordinate
- 55.372, -131.6832
View on OpenStreetMap - ZIP prefix
- 999 · 13 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 1,958.956 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.
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Browse the other 272 ZIP codes recorded for Alaska, sorted by code with place and county.
Alaska directoryOther ZIP codes in Ketchikan, AK
Ketchikan has 2 ZIP codes in the reference dataset.
- 99950Ketchikan Gateway
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 99928 | Ward Cove | AK | Ketchikan Gateway | 1.6 |
| 99950 | Ketchikan | AK | Ketchikan Gateway | 2.5 |
| 99926 | Metlakatla | AK | Prince of Wales-Hyder | 17.8 |
| 99903 | Meyers Chuck | AK | Prince of Wales-Hyder | 33.9 |
| 99919 | Thorne Bay | AK | Prince of Wales-Hyder | 38.1 |
| 99922 | Hydaburg | AK | Prince of Wales-Hyder | 46.4 |
| 99925 | Klawock | AK | Prince of Wales-Hyder | 55.2 |
| 99921 | Craig | AK | Prince of Wales-Hyder | 56.7 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.
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