Old Harbor, AK ZIP code
The ZIP code for Old Harbor, Alaska is 99643. It is in Kodiak Island Borough.
- Population in these ZIPs
- 162
- Avg. median income
- $30,000population-weighted
- Typical home value
- —population-weighted
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Old Harbor, AK ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 99643 | 162 | $30,000 | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Old Harbor
- Larsen Bay 27 mi
- Kodiak 43 mi
- Karluk 46 mi
- Port Lions 48 mi
- Ouzinkie 59 mi
- King Salmon 148 mi
- Pilot Point 149 mi
- Seldovia 163 mi
- South Naknek 167 mi
- Egegik 167 mi
- Naknek 169 mi
- Homer 178 mi
Frequently asked questions
What is the ZIP code for Old Harbor, AK?
The ZIP code for Old Harbor, AK is 99643.
What county is Old Harbor, Alaska in?
Old Harbor ZIP codes are in Kodiak Island Borough.