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/KASILOF

Kasilof ZIP code, Alaska

The ZIP code for Kasilof, AK is 99610, and its area code is 907.

USPS city name
1 ZIP code
Population
313
Area code
907
State
Alaska

NANPA lists no telephone rate centre for Kasilof itself, so these are the area codes of the nearest one, Soldotna (10.3 miles). A town on an area-code boundary can differ from its neighbour.

Kasilof in numbers

About 313 people live in Kasilof, in 195 households. The median household income is $63,386 a year, 32% below the Alaska median of $92,788 (US: $80,734). The median owner-occupied home is valued at $445,900 (26% above the Alaska median), and median gross rent is $1,559 a month. The median age is 49.3; 56.4% of adults 25 and over hold a bachelor's degree or higher (31.7% across Alaska).

Population313Kasilof313
Households195Kasilof195
Median age49.3Kasilof49.3Alaska35.8US 38.9
Median household income$63,386Kasilof$63,386Alaska$92,788US $80,734
Median home value$445,900Kasilof$445,900Alaska$352,900US $332,700
Median gross rent$1,559Kasilof$1,559Alaska$1,419US $1,413
Bachelor's degree or higher56.4%Kasilof56.4%Alaska31.7%US 35.7%
Population density30 / sq miKasilof30 / sq mi

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

ZIP codes addressed as Kasilof

ZIP codes with the USPS city name Kasilof
ZIP City Type Population Median income Median home
99610 Kasilof , AK Standard 2,222 $56,333 $278,600

Map of Kasilof ZIP codes

99610

The ZIP codes of Kasilof, 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 Kasilof

The nearest larger towns are Cohoe (1,598 people, 4.3 mi), Kalifornsky (8,663 people, 9.3 mi) and Soldotna (4,485 people, 13 mi).

Towns near Kasilof
TownPopulationDistance
Kalifornsky 8,663 9.3 mi
Soldotna 4,485 12.7 mi
Kenai 7,641 16.8 mi
Sterling 6,323 21.1 mi
Nikiski 4,773 28.0 mi

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

Cite this page

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

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