Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/99901

99901

ZIP 99901 is in Ketchikan, Alaska, mostly in Ketchikan Gateway Borough; area code 907; Alaska time. Ketchikan has 2 ZIP codes; the other is 99950.

Type
Standard
Time zone
America/Sitka
County
Ketchikan Gateway +1 more
Metro area
Ketchikan, AK
Population
13,768
Coordinates
55.6629, -131.3663
☼ Live from 99901 — Ketchikan, AK

Weather right now

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Local time: —

Where 99901 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.

★ Weird and wonderful facts about 99901
  • 🔢 Type 99901 into a pocket calculator and turn it upside down: IOGGG — not quite a word, sorry.
  • ➕ 99901 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 28, a total 1,520 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000011000111101
  • 🏠 Its numerical neighbours: 99850 (Juneau, AK, 249 mi away) and 99903 (Meyers Chuck, AK, 29 mi away).
  • 🔄 Backwards, 99901 becomes 10999, which is not a ZIP code at all.
  • 👥 4 other ZIP codes are made of exactly the same digits (19099, 91909, 99019, 99109). The farthest-flung twin is 19099 in Philadelphia, PA, 2,735 miles away.
  • 🧭 Farther north than 99% of all ZIP codes, and farther west than 98%.
  • 🎯1,848 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 99901 and you would come out at 55.66°S, 48.63°E — 1,002 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 17h 32m of daylight. Shortest: 7h 01m.
  • 📏 At 1,959.0 square miles of land, 99901 is bigger than 99% of ZIP codes — room for about 1,487 Central Parks.
🌙 The sky over 99901 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population13,768This ZIP13,768
Households5,732This ZIP5,732
Housing units6,690This ZIP6,690
Median age41.0This ZIP41.0Alaska35.8US 38.9
Median household income$92,885This ZIP$92,885Alaska$92,788US $80,734
Median home value$393,300This ZIP$393,300Alaska$352,900US $332,700
Median gross rent$1,505This ZIP$1,505Alaska$1,419US $1,413
Bachelor's degree or higher27.4%This ZIP27.4%
Mean commute14.6 minThis ZIP14.6 min
Population density7.0 / sq miThis ZIP7.0 / sq mi

Business and tax activity

Business establishments599This ZIP599
Employees4,691This ZIP4,691
Annual payroll$343,225,000This ZIP$343,225,000
Tax returns filed6,130This ZIP6,130
Total adjusted gross income$553,760,000This ZIP$553,760,000

Land area

Land area1,959.03 sq miThis ZIP1,959.03 sq mi
Water area306.75 sq miThis ZIP306.75 sq mi

Counties 99901 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Ketchikan Gateway Borough 86.5%
Prince of Wales-Hyder Census Area 13.5%

Other place names in 99901

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 99901

ZIPCityDistance
99928 Ward Cove, AK 22.1 mi
99950 Ketchikan, AK 24.7 mi
99903 Meyers Chuck, AK 29.2 mi
99926 Metlakatla, AK 36.5 mi
99919 Thorne Bay, AK 44.1 mi
99929 Wrangell, AK 44.2 mi
99921 Craig, AK 53.1 mi
99918 Coffman Cove, AK 54.5 mi
99923 Hyder, AK 56.6 mi
99925 Klawock, AK 62.1 mi

Find every ZIP code within 10 miles of 99901 →

Questions about this ZIP code

Where is ZIP code 99901?

99901 is in Ketchikan, Alaska, in Ketchikan Gateway Borough, part of the Ketchikan, AK micropolitan area. Its published point location is 55.6629, -131.3663.

What county is 99901 in?

99901 spans 2 counties: Ketchikan Gateway Borough and Prince of Wales-Hyder Census Area. Most of it falls in Ketchikan Gateway Borough, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 99901?

Ketchikan uses area code 907, from NANPA's telephone records.

What time zone is 99901 in?

99901 uses America/Sitka.

How many people live in 99901?

About 13,768 people live in ZIP code 99901, in 5,732 households, at 7.0 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 99901?

$92,885 a year, against $92,788 across Alaska.

What ZIP codes are near 99901?

The closest are 99928 (22.1 mi), 99950 (24.7 mi), 99903 (29.2 mi), 99926 (36.5 mi) and 99919 (44.1 mi).

Is 99901 a PO Box ZIP code?

99901 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “99901 ZIP Code — Ketchikan, Alaska (Ketchikan Gateway Borough).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99901

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