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Where 99840 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 99840 into a pocket calculator and turn it upside down: OhBGG — not quite a word, sorry.
- ➕ As a number, 99,840 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 13. Its digits add up to 30, a total 1,024 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000011000000000 - 🏠 Its numerical neighbours: 99836 (Port Alexander, AK, 230 mi away) and 99841 (Tenakee Springs, AK, 111 mi away).
- 🔄 Backwards, 99840 becomes 04899, which is not a ZIP code at all.
- 👥 16 other ZIP codes are made of exactly the same digits (04989, 09498, 09894, 48099, 48909, 49089, …). The farthest-flung twin is 09894 in APO AE, a military post office, 6,615 miles away.
- 🧭 Farther north than 99% of all ZIP codes, and farther west than 99%.
- 🎯2,089 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 99840 and you would come out at 59.56°S, 44.66°E — 1,233 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 18h 42m of daylight. Shortest: 6h 00m.
- 📏 At 442.9 square miles of land, 99840 is bigger than 97% of ZIP codes — room for about 336 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,244This ZIP1,244 |
|---|---|
| Households | 450This ZIP450 |
| Housing units | 666This ZIP666 |
| Median age | 41.2This ZIP41.2Alaska35.8US 38.9 |
| Median household income | $81,136This ZIP$81,136Alaska$92,788US $80,734 |
| Median home value | $435,400This ZIP$435,400Alaska$352,900US $332,700 |
| Median gross rent | $1,280This ZIP$1,280Alaska$1,419US $1,413 |
| Bachelor's degree or higher | 28.5%This ZIP28.5% |
| Mean commute | 4.9 minThis ZIP4.9 min |
| Population density | 2.8 / sq miThis ZIP2.8 / sq mi |
Business and tax activity
| Business establishments | 112This ZIP112 |
|---|---|
| Employees | 441This ZIP441 |
| Annual payroll | $38,659,000This ZIP$38,659,000 |
Land area
| Land area | 442.93 sq miThis ZIP442.93 sq mi |
|---|---|
| Water area | 10.73 sq miThis ZIP10.73 sq mi |
Other place names in 99840
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 99840
| ZIP | City | Distance |
|---|---|---|
99827 | Haines, AK | 59.7 mi |
99850 | Juneau, AK | 74.3 mi |
99821 | Auke Bay, AK | 80.0 mi |
99826 | Gustavus, AK | 81.1 mi |
99812 | Juneau, AK | 90.6 mi |
99801 | Juneau, AK | 91.9 mi |
99802 | Juneau, AK | 92.9 mi |
99803 | Juneau, AK | 92.9 mi |
99811 | Juneau, AK | 92.9 mi |
99824 | Douglas, AK | 95.5 mi |
Find every ZIP code within 10 miles of 99840 →
Questions about this ZIP code
Where is ZIP code 99840?
99840 is in Skagway, Alaska, in Skagway Municipality. Its published point location is 59.5604, -135.3383.
What county is 99840 in?
99840 lies in Skagway Municipality.
What area code is 99840?
Skagway uses area code 907, from NANPA's telephone records.
What time zone is 99840 in?
99840 uses America/Juneau.
How many people live in 99840?
About 1,244 people live in ZIP code 99840, in 450 households, at 2.8 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 99840?
$81,136 a year, against $92,788 across Alaska.
What ZIP codes are near 99840?
The closest are 99827 (59.7 mi), 99850 (74.3 mi), 99821 (80 mi), 99826 (81.1 mi) and 99812 (90.6 mi).
Is 99840 a PO Box ZIP code?
99840 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “99840 ZIP Code — Skagway, Alaska (Skagway Municipality).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99840
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/99840.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.