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 — CITY/AK/UNALASKA

Unalaska ZIP code, Alaska

The ZIP code for Unalaska, AK is 99685, and its area code is 907.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
4,556
Area code
907
State
Alaska

Mail addressed to Unalaska uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Unalaska in numbers

About 4,556 people live in Unalaska, in 839 households, the 28th-largest of Alaska's 322 census places. The median household income is $131,964 a year, 42% above the Alaska median of $92,788 (US: $80,734). The median owner-occupied home is valued at $462,400 (31% above the Alaska median), and median gross rent is $2,034 a month. The median age is 40.4; 17.9% of adults 25 and over hold a bachelor's degree or higher (31.7% across Alaska); the average commute takes 6 minutes.

Population4,556Unalaska4,556
Households839Unalaska839
Median age40.4Unalaska40.4Alaska35.8US 38.9
Median household income$131,964Unalaska$131,964Alaska$92,788US $80,734
Median home value$462,400Unalaska$462,400Alaska$352,900US $332,700
Median gross rent$2,034Unalaska$2,034Alaska$1,419US $1,413
Bachelor's degree or higher17.9%Unalaska17.9%Alaska31.7%US 35.7%
Mean commute6.4 minUnalaska6.4 minAlaska19.4 minUS 26.4 min
Population density45 / sq miUnalaska45 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Unalaska city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Unalaska

ZIP codes with the USPS city name Unalaska
ZIP City Type Population Median income Median home
99685 Unalaska , AK Standard 3,747 $135,759 $462,400

Other ZIP codes overlapping Unalaska

These ZIP codes cover part of Unalaska but are addressed as somewhere else.

ZIP codes overlapping Unalaska
ZIP City Type Population Median income Median home
99692 Dutch Harbor , AK Standard 809 $110,625 —

Map of Unalaska ZIP codes

99685

The ZIP codes of Unalaska, AK, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

More nearby: every ZIP code in Aleutians West Census Area · Alaska ZIP codes

Cite this page

zipcodes.pro. “Unalaska, AK ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ak/unalaska

Underlying data is public domain or openly licensed — sources, vintages and licences.