99631 ZIP Code: Moose Pass, Alaska
ZIP code 99631 covers Moose Pass, Alaska. It sits in Kenai Peninsula. A ZIP code is a US Postal Service mail route, not a boundary on a map, so it describes where post is delivered rather than an administrative area.
Moose Pass, AK sits outside the mainland map frame, so there is no locator for this ZIP code.
| ZIP code | 99631 |
|---|---|
| Place | Moose Pass |
| State | Alaska (AK) |
| County or equivalent | Kenai Peninsula |
| Phone area codes in Alaska | 1 |
| Country | United States |
Phone area codes in Alaska
ZIP codes and area codes are separate systems drawn for different purposes, so no ZIP code maps to exactly one area code. These are every geographic code used across Alaska.
ZIP codes near 99631
- 99572 Cooper Landingabout 17 miles
- 99605 Hopeabout 18 miles
- 99587 Girdwoodabout 25 miles
- 99693 Whittierabout 27 miles
- 99664 Sewardabout 33 miles
- 99511 Anchorageabout 34 miles
- 99519 Anchorageabout 34 miles
- 99540 Indianabout 34 miles
Distances are straight-line, between the approximate centres of each delivery area.
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Frequently asked questions
Where is ZIP code 99631?
ZIP code 99631 is in Moose Pass, Alaska, in Kenai Peninsula. ZIP codes are mail delivery routes rather than mapped regions, so the code identifies a set of addresses the Postal Service serves together, not a district with fixed borders.
What county is 99631 in?
99631 is in Kenai Peninsula, Alaska. A single ZIP code can straddle a county line, because mail routes were drawn for delivery efficiency and take no notice of county boundaries, so the county shown is the one the code is primarily associated with.
What area code goes with ZIP code 99631?
ZIP codes and telephone area codes are separate systems with different boundaries, so no ZIP code maps to exactly one area code. Alaska uses 1 geographic area code: 907.
Is 99631 a real ZIP code?
Yes. 99631 appears in the GeoNames postal-code dataset as an active US code assigned to Moose Pass, Alaska. Codes that have been retired or never issued do not appear, which is why entering one on this site returns a not-found page rather than a blank record.
Why do ZIP code boundaries look odd on maps?
Because they are not boundaries. A ZIP code is a collection of mail routes, and a route is a line a carrier walks or drives, not an area. Any ZIP code map you have seen is somebody's approximation drawn around the addresses in a code, which is also why two ZIP code maps rarely agree with each other.
Can two addresses in the same ZIP code be in different cities?
Yes, routinely. The Postal Service assigns a preferred city name to each code for addressing purposes, and that name often covers several neighbouring towns, unincorporated areas or a whole postal district. The place shown here is the one the source names for the code, not a claim that every address in it is inside that town's limits.
ZIP code, place, county and location data from GeoNames, used under CC BY 4.0, extracted 2026-08-22. ZIP codes are Postal Service delivery routes, not administrative areas, so a code can cross city and county lines and the place name shown is the one the source records for the code. Coordinates are an approximate centre of the delivery area, not a precise location. Population and time zone are not shown because the source does not publish them.