Koyukuk Alaska ZIP Codes
Koyukuk holds a single ZIP code.
Every ZIP code in Koyukuk
| ZIP code | Borough or census area |
|---|---|
| 99754 | Yukon-Koyukuk Census Area |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Koyukuk codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Koyukuk. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Koyukuk ZIP code begins 997. Those first three digits identify the sectional center facility that processes mail for this part of Alaska. Statewide that range covers 82 ZIP codes, so Koyukuk accounts for 1% of it.
Every Alaska ZIP prefix and the region it covers →
Area codes covering Koyukuk
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Koyukuk occupies.
Koyukuk Alaska area codes in full →
Where Koyukuk's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Koyukuk
| City | Distance | ZIP codes |
|---|---|---|
| Nulato Alaska ZIP codes | 23 mi | 1 ZIP code |
| Galena Alaska ZIP codes | 27 mi | 1 ZIP code |
| Kaltag Alaska ZIP codes | 52 mi | 1 ZIP code |
| Ruby Alaska ZIP codes | 66 mi | 1 ZIP code |
| Huslia Alaska ZIP codes | 67 mi | 1 ZIP code |
| Koyuk Alaska ZIP codes | 100 mi | 1 ZIP code |
| Shaktoolik Alaska ZIP codes | 110 mi | 1 ZIP code |
| Unalakleet Alaska ZIP codes | 116 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.