ZIP code 99643
Where is ZIP code 99643?
Old Harbor, Alaska
Kodiak Island Borough · PO Box only ZIP code
ZIP code 99643 belongs to Old Harbor, Alaska in Kodiak Island Borough. 99643 is a PO Box only ZIP code: it is used for post office boxes at the Old Harbor post office, not for street addresses. It is in the Alaska Time zone and uses area code 907. About 162 people live in the 99643 area, where the median household income is $30,000. The closest ZIP codes are 99697 (Kodiak, 18.5 mi north), 99624 (Larsen Bay, 31.1 mi northwest) and 99615 (Kodiak, 32.3 mi north).
| ZIP code | 99643 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Old Harbor |
| State | Alaska (AK) |
| County | Kodiak Island Borough |
| Time zone | Alaska Time · now |
| Area code | 907 |
| Coordinates | 57.2205, -153.3213 map |
| 3-digit prefix | 996 |
Population and income in 99643
| Population | 162 · lower than 72% of Alaska ZIP codes |
|---|---|
| People per square mile | 10 · higher than 57% of Alaska ZIP codes |
| Median age | 34.2 years · lower than 55% of Alaska ZIP codes |
| Men / women | 54% / 46% |
| Median household income | $30,000 · lower than 96% of Alaska ZIP codes |
| Income per person | $21,038 |
| Below the poverty line | 56% |
| Bachelor’s degree or higher | 10% of adults 25+ |
| Housing units | 153 |
| Households | 86 (1.88 people on average) |
| Owners / renters | 67% / 33% |
| Land area | 15.93 sq mi (plus 6.4 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 99643. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 99643
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 99697 | Kodiak, AK | 18.5 mi N | PO Box only |
| 99624 | Larsen Bay, AK | 31.1 mi NW | PO Box only |
| 99615 | Kodiak, AK | 32.3 mi N | Standard |
| 99608 | Karluk, AK | 47.2 mi NW | PO Box only |
| 99550 | Port Lions, AK | 48.4 mi N | PO Box only |
| 99619 | Kodiak, AK | 52 mi NE | PO Box only |
| 99644 | Ouzinkie, AK | 57.3 mi NE | PO Box only |
| 99649 | Pilot Point, AK | 147.3 mi W | PO Box only |
| 99613 | King Salmon, AK | 158.4 mi NW | PO Box only |
| 99625 | Levelock, AK | 159.9 mi NW | PO Box only |
| 99579 | Egegik, AK | 163.2 mi NW | PO Box only |
| 99663 | Seldovia, AK | 164.8 mi N | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 99643 or measure the distance to another ZIP code.
How to address mail to 99643
PO BOX 123
OLD HARBOR AK 99643
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (99643-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 99643?
- 99643 is a Old Harbor, Alaska ZIP code.
- What county is 99643 in?
- ZIP code 99643 is in Kodiak Island Borough, Alaska.
- What time zone is ZIP code 99643 in?
- 99643 is in the Alaska Time zone (America/Anchorage).
- What area code is 99643?
- Phone numbers in ZIP code 99643 use area code 907.
- What is the population of ZIP code 99643?
- About 162 people live in ZIP code 99643, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 99643?
- The median household income in 99643 is $30,000 a year, lower than 96% of Alaska ZIP codes.
- Can I use 99643 for a street address?
- No. 99643 is only for PO Boxes. Street addresses in Old Harbor use another ZIP code.
- What ZIP codes are near 99643?
- The nearest ZIP codes to 99643 are 99697 (Kodiak, 18.5 miles), 99624 (Larsen Bay, 31.1 miles), 99615 (Kodiak, 32.3 miles) and 99608 (Karluk, 47.2 miles).