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/SEWARD

Seward ZIP code, Alaska

The ZIP code for Seward, AK is 99664, and its area code is 907.

USPS city name
1 ZIP code
Population
2,794
Area code
907
State
Alaska

Seward in numbers

About 2,794 people live in Seward, in 925 households, the 40th-largest of Alaska's 322 census places. The median household income is $85,481 a year, 8% below the Alaska median of $92,788 (US: $80,734). The median owner-occupied home is valued at $338,100 (4% below the Alaska median), and median gross rent is $1,132 a month. The median age is 37.7; 43.0% of adults 25 and over hold a bachelor's degree or higher (31.7% across Alaska); the average commute takes 12 minutes.

Population2,794Seward2,794
Households925Seward925
Median age37.7Seward37.7Alaska35.8US 38.9
Median household income$85,481Seward$85,481Alaska$92,788US $80,734
Median home value$338,100Seward$338,100Alaska$352,900US $332,700
Median gross rent$1,132Seward$1,132Alaska$1,419US $1,413
Bachelor's degree or higher43.0%Seward43.0%Alaska31.7%US 35.7%
Mean commute12.3 minSeward12.3 minAlaska19.4 minUS 26.4 min
Population density200 / sq miSeward200 / sq mi

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

ZIP codes addressed as Seward

ZIP codes with the USPS city name Seward
ZIP City Type Population Median income Median home
99664 Seward , AK Standard 4,698 $87,760 $384,600

Map of Seward ZIP codes

99664

The ZIP codes of Seward, 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.

Towns near Seward

The nearest larger towns are Sterling (6,323 people, 56 mi), Soldotna (4,485 people, 63 mi) and Kalifornsky (8,663 people, 67 mi).

More nearby: every ZIP code in Kenai Peninsula Borough · Alaska ZIP codes

Cite this page

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

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