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 — STATE/AK/COUNTY/KENAI-PENINSULA

Kenai Peninsula Borough, AK ZIP codes

There are 15 ZIP codes in Kenai Peninsula Borough, AK, in 15 towns, from 99556 to 99682. The largest are 99669 (Soldotna), 99611 (Kenai) and 99603 (Homer).

The borough seat is Soldotna.

ZIP codes
15
Towns
15
Borough seat
Soldotna
County FIPS
02122
State
Alaska
Population
60,413
Median household income
$80,538
Land area
16,018 sq mi
Area code
907

Kenai Peninsula Borough ZIP codes by town

Soldotna (borough seat)
99669

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Kenai Peninsula Borough ZIP codes

The ZIP codes of Kenai Peninsula Borough, 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.

Kenai Peninsula Borough in numbers

About 60,413 people live in Kenai Peninsula Borough, in 24,371 households, the 4th most populous of Alaska's 30 counties. The median household income is $80,538 a year, 13% below the Alaska median of $92,788 (US: $80,734). The median owner-occupied home is valued at $323,200 (8% below the Alaska median), and median gross rent is $1,184 a month. The median age is 41.4; 29.8% of adults 25 and over hold a bachelor's degree or higher (31.7% across Alaska); the average commute takes 21 minutes.

Population60,413Kenai Peninsula60,413
Households24,371Kenai Peninsula24,371
Median age41.4Kenai Peninsula41.4Alaska35.8US 38.9
Median household income$80,538Kenai Peninsula$80,538Alaska$92,788US $80,734
Median home value$323,200Kenai Peninsula$323,200Alaska$352,900US $332,700
Median gross rent$1,184Kenai Peninsula$1,184Alaska$1,419US $1,413
Bachelor's degree or higher29.8%Kenai Peninsula29.8%Alaska31.7%US 35.7%
Mean commute20.7 minKenai Peninsula20.7 minAlaska19.4 minUS 26.4 min
Population density4 / sq miKenai Peninsula4 / sq mi

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

Largest towns in Kenai Peninsula Borough

Largest towns in Kenai Peninsula Borough
TownZIP codesPopulation
Kenai 1 7,641
Sterling 1 6,323
Homer 1 5,877
Nikiski 1 4,773
Soldotna 1 4,485
Seward 1 2,794
Anchor Point 1 2,243
Ninilchik 1 965
Kasilof 1 313
Tyonek 1 291
Clam Gulch 1 238
Cooper Landing 1 227
Moose Pass 1 202
Seldovia 1 202
Hope 1 23

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Not sure you are in Kenai Peninsula Borough? What county am I in? answers from your location, near a county line included.

Every ZIP code in Kenai Peninsula Borough, with figures

ZIP codes in Kenai Peninsula Borough
ZIP City Type Population Median income Median home
99556 Anchor Point , AK Standard 2,866 $62,179 $239,200
99568 Clam Gulch , AK Standard 465 $85,000 $312,900
99572 Cooper Landing , AK Standard 241 $143,672 $428,000
99603 Homer , AK Standard 11,693 $78,767 $373,500
99605 Hope , AK Standard 23 — —
99610 Kasilof , AK Standard 2,222 $56,333 $278,600
99611 Kenai , AK Standard 16,510 $79,757 $308,500
99631 Moose Pass , AK Standard 222 — $364,800
99635 Nikiski , AK Standard 100 — —
99639 Ninilchik , AK Standard 1,175 $47,333 $250,800
99663 Seldovia , AK Standard 417 $84,306 $198,200
99664 Seward , AK Standard 4,698 $87,760 $384,600
99669 Soldotna , AK Standard 15,395 $80,980 $320,200
99672 Sterling , AK Standard 4,091 $100,642 $316,400
99682 Tyonek , AK Standard 295 $66,250 $48,300

Cite this page

zipcodes.pro. “Kenai Peninsula Borough ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ak/county/kenai-peninsula

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