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Where 99551 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 99551 into a pocket calculator and turn it upside down: ISSGG — not quite a word, sorry.
- ➕ 99551 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 29, a total 1,296 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000010011011111 - 🏠 Its numerical neighbours: 99550 (Port Lions, AK, 367 mi away) and 99552 (Akiak, AK, 6 mi away). Next door on paper, a road trip in real life.
- 🔄 Backwards, 99551 becomes 15599, which is not a ZIP code at all.
- 👥 12 other ZIP codes are made of exactly the same digits (15959, 19559, 19955, 55919, 55991, 59915, …). The farthest-flung twin is 19955 in Kenton, DE, 3,766 miles away.
- 🧭 Farther north than 99% of all ZIP codes, and farther west than 99%.
- 🎯2,978 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 99551 and you would come out at 60.92°S, 18.60°E — 1,865 miles from Cape Town, South Africa, the nearest big city to that spot.
- ☀Longest day of the year: 19h 15m of daylight. Shortest: 5h 33m.
- 📏 At 7.0 square miles of land, 99551 is bigger than 23% of ZIP codes — room for about 5.3 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 736This ZIP736 |
|---|---|
| Households | 162This ZIP162 |
| Housing units | 176This ZIP176 |
| Median age | 24.3This ZIP24.3Alaska35.8US 38.9 |
| Median household income | $30,000This ZIP$30,000Alaska$92,788US $80,734 |
| Median home value | $137,500This ZIP$137,500Alaska$352,900US $332,700 |
| Median gross rent | $708This ZIP$708Alaska$1,419US $1,413 |
| Bachelor's degree or higher | 6.8%This ZIP6.8% |
| Mean commute | 5.9 minThis ZIP5.9 min |
| Population density | 105.0 / sq miThis ZIP105.0 / sq mi |
Business and tax activity
| Business establishments | 4This ZIP4 |
|---|---|
| Employees | 146This ZIP146 |
| Annual payroll | $650,000This ZIP$650,000 |
Land area
| Land area | 7.01 sq miThis ZIP7.01 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 99551
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 99551
| ZIP | City | Distance |
|---|---|---|
99552 | Akiak, AK | 6.3 mi |
99621 | Kwethluk, AK | 8.9 mi |
99559 | Bethel, AK | 19.0 mi |
99679 | Tuluksak, AK | 20.1 mi |
99634 | Napakiak, AK | 26.4 mi |
99641 | Nunapitchuk, AK | 35.7 mi |
99609 | Kasigluk, AK | 38.3 mi |
99578 | Eek, AK | 53.3 mi |
99626 | Lower Kalskag, AK | 53.7 mi |
99607 | Kalskag, AK | 55.2 mi |
Find every ZIP code within 10 miles of 99551 →
Questions about this ZIP code
Where is ZIP code 99551?
99551 is in Akiachak, Alaska, in Bethel Census Area. Its published point location is 60.9210, -161.4022.
What county is 99551 in?
99551 lies in Bethel Census Area.
What area code is 99551?
Akiachak uses area code 907, from NANPA's telephone records.
What time zone is 99551 in?
99551 uses America/Anchorage.
How many people live in 99551?
About 736 people live in ZIP code 99551, in 162 households, at 105.0 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 99551?
$30,000 a year, against $92,788 across Alaska.
What ZIP codes are near 99551?
The closest are 99552 (6.3 mi), 99621 (8.9 mi), 99559 (19 mi), 99679 (20.1 mi) and 99634 (26.4 mi).
Is 99551 a PO Box ZIP code?
99551 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “99551 ZIP Code — Akiachak, Alaska (Bethel Census Area).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99551
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/99551.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.