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zipcodes.pro — CITY/WA/LAKE-CASSIDY

Lake Cassidy ZIP codes, Washington

No ZIP code is named for Lake Cassidy, WA; addresses there use a neighbouring town's name. 3 ZIP codes cover it: 98270, 98258 and 98223.

USPS city name
0 ZIP codes
Overlapping the city
3 more
Population
3,292

Lake Cassidy in numbers

About 3,292 people live in Lake Cassidy, in 1,311 households. The median household income is $113,403 a year, 16% above the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $705,000 (25% above the Washington median), and median gross rent is $1,734 a month. The median age is 50.7; 25.0% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 29 minutes.

Population3,292Lake Cassidy3,292
Households1,311Lake Cassidy1,311
Median age50.7Lake Cassidy50.7Washington38.3US 38.9
Median household income$113,403Lake Cassidy$113,403Washington$98,141US $80,734
Median home value$705,000Lake Cassidy$705,000Washington$564,600US $332,700
Median gross rent$1,734Lake Cassidy$1,734Washington$1,760US $1,413
Bachelor's degree or higher25.0%Lake Cassidy25.0%Washington39.6%US 35.7%
Mean commute29.0 minLake Cassidy29.0 minWashington26.6 minUS 26.4 min
Population density311 / sq miLake Cassidy311 / sq mi

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

ZIP codes covering Lake Cassidy

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

ZIP codes overlapping Lake Cassidy
ZIP City Type Population Median income Median home
98223 Arlington , WA Standard 46,497 $99,681 $601,400
98258 Lake Stevens , WA Standard 52,752 $123,898 $653,100
98270 Marysville , WA Standard 55,049 $108,147 $579,900

Map of Lake Cassidy ZIP codes

982239825898270

The ZIP codes of Lake Cassidy, 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 Lake Cassidy

The nearest larger towns are Marysville (73,002 people, 3.5 mi), Lake Stevens (40,253 people, 4.4 mi) and Granite Falls (4,659 people, 5.5 mi).

Towns near Lake Cassidy
TownPopulationDistance
Lochsloy 3,029 2.0 mi
Marysville 73,002 3.5 mi
Sisco Heights 3,015 3.8 mi
Lake Stevens 40,253 4.4 mi
Granite Falls 4,659 5.5 mi
Canyon Creek 3,910 5.5 mi
Bunk Foss 3,627 7.2 mi
Arlington 21,095 7.8 mi
Everett 111,845 8.5 mi
Three Lakes 4,055 9.0 mi
Fobes Hill 2,569 9.1 mi
Snohomish 10,239 9.5 mi
Arlington Heights 2,727 10.1 mi
Lake Goodwin 5,536 10.1 mi

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

Cite this page

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

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