Weather right now
Asking the National Weather Service…
Where 99621 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 99621 into a pocket calculator and turn it upside down: IZgGG — not quite a word, sorry.
- ➕ As a number, 99,621 = 3 × 3 × 11069. Its digits add up to 27, a total 1,806 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000010100100101 - 🏠 Its numerical neighbours: 99620 (Kotlik, AK, 169 mi away) and 99622 (Kwigillingok, AK, 87 mi away).
- 🔄 Backwards, 99621 becomes 12699, which is not a ZIP code at all.
- 👥 23 other ZIP codes are made of exactly the same digits (12969, 12996, 16929, 19962, 29169, 29691, …). The farthest-flung twin is 96912 in Dededo, GU, 4,221 miles away.
- 🧭 Farther north than 99% of all ZIP codes, and farther west than 99%.
- 🎯2,979 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 99621 and you would come out at 60.79°S, 18.57°E — 1,856 miles from Cape Town, South Africa, the nearest big city to that spot.
- ☀Longest day of the year: 19h 11m of daylight. Shortest: 5h 36m.
- 📏 At 10.1 square miles of land, 99621 is bigger than 27% of ZIP codes — room for about 7.7 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 975This ZIP975 |
|---|---|
| Households | 203This ZIP203 |
| Housing units | 266This ZIP266 |
| Median age | 24.1This ZIP24.1Alaska35.8US 38.9 |
| Median household income | $51,917This ZIP$51,917Alaska$92,788US $80,734 |
| Median home value | $86,700This ZIP$86,700Alaska$352,900US $332,700 |
| Median gross rent | $725This ZIP$725Alaska$1,419US $1,413 |
| Bachelor's degree or higher | 5.1%This ZIP5.1% |
| Mean commute | 5.8 minThis ZIP5.8 min |
| Population density | 96.1 / sq miThis ZIP96.1 / sq mi |
Business and tax activity
| Business establishments | 4This ZIP4 |
|---|---|
| Employees | 37This ZIP37 |
| Annual payroll | $1,223,000This ZIP$1,223,000 |
Land area
| Land area | 10.14 sq miThis ZIP10.14 sq mi |
|---|---|
| Water area | 1.68 sq miThis ZIP1.68 sq mi |
Other place names in 99621
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 99621
| ZIP | City | Distance |
|---|---|---|
99551 | Akiachak, AK | 8.9 mi |
99552 | Akiak, AK | 10.8 mi |
99559 | Bethel, AK | 15.3 mi |
99634 | Napakiak, AK | 21.1 mi |
99679 | Tuluksak, AK | 27.1 mi |
99641 | Nunapitchuk, AK | 35.2 mi |
99609 | Kasigluk, AK | 37.6 mi |
99578 | Eek, AK | 45.0 mi |
99680 | Tuntutuliak, AK | 52.1 mi |
99626 | Lower Kalskag, AK | 61.3 mi |
Find every ZIP code within 10 miles of 99621 →
Questions about this ZIP code
Where is ZIP code 99621?
99621 is in Kwethluk, Alaska, in Bethel Census Area. Its published point location is 60.7933, -161.4310.
What county is 99621 in?
99621 lies in Bethel Census Area.
What area code is 99621?
Kwethluk uses area code 907, from NANPA's telephone records.
What time zone is 99621 in?
99621 uses America/Anchorage.
How many people live in 99621?
About 975 people live in ZIP code 99621, in 203 households, at 96.1 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 99621?
$51,917 a year, against $92,788 across Alaska.
What ZIP codes are near 99621?
The closest are 99551 (8.9 mi), 99552 (10.8 mi), 99559 (15.3 mi), 99634 (21.1 mi) and 99679 (27.1 mi).
Is 99621 a PO Box ZIP code?
99621 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “99621 ZIP Code — Kwethluk, Alaska (Bethel Census Area).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99621
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/99621.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.