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/WA/LOON-LAKE

Loon Lake ZIP code, Washington

The ZIP code for Loon Lake, WA is 99148, and its area code is 509.

USPS city name
1 ZIP code
Population
906
Area code
509

Loon Lake in numbers

About 906 people live in Loon Lake, in 413 households. The median household income is $76,250 a year, 22% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $340,800 (40% below the Washington median). The median age is 52.0; 20.5% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 33 minutes.

Population906Loon Lake906
Households413Loon Lake413
Median age52.0Loon Lake52.0Washington38.3US 38.9
Median household income$76,250Loon Lake$76,250Washington$98,141US $80,734
Median home value$340,800Loon Lake$340,800Washington$564,600US $332,700
Bachelor's degree or higher20.5%Loon Lake20.5%Washington39.6%US 35.7%
Mean commute32.6 minLoon Lake32.6 minWashington26.6 minUS 26.4 min
Population density278 / sq miLoon Lake278 / sq mi

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

ZIP codes addressed as Loon Lake

ZIP codes with the USPS city name Loon Lake
ZIP City Type Population Median income Median home
99148 Loon Lake , WA Standard 2,794 $67,431 $429,900

Map of Loon Lake ZIP codes

99148

The ZIP codes of Loon Lake, WA, 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 Loon Lake

The nearest larger towns are Deer Park (4,791 people, 11 mi), Chewelah (2,606 people, 15 mi) and Suncrest (5,345 people, 17 mi).

Towns near Loon Lake
TownPopulationDistance
Deer Park 4,791 11.3 mi
Chewelah 2,606 15.3 mi
Suncrest 5,345 16.7 mi
Fairwood 10,674 23.1 mi
Mead 6,893 23.8 mi
Country Homes 6,198 24.2 mi
Town and Country 4,890 25.5 mi
Spokane 230,293 29.3 mi
Airway Heights 11,245 29.4 mi

More nearby: every ZIP code in Stevens County · Washington ZIP codes

Cite this page

zipcodes.pro. “Loon Lake, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/loon-lake

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