The Town FilesLake Cassidy, Washington
Community in Snohomish County · population 3,757 (2020 Census)
- Median home
- $705,000
- Household income
- $113,403
- Jan low / Jul high
- 35° / 75°
- Snow a year
- 4 in
- Tornadoes ≤10 mi since 1950
- 1
- Median age
- 50.7
Lake Cassidy is a community of 3,757 people in Snohomish County, Washington. The median home is worth $705,000, above the typical Washington town ($475,000). It ranks better for first-time buyers than 85% of Washington towns, better for families than 79% of Washington towns, easier by car than 75% of Washington towns.
How Lake Cassidy ranks
Percentile among Washington towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Washington towns.
Homes and cost of living
The median home in Lake Cassidy is worth $705,000, above the typical Washington town ($475,000). Homes cost about 6.2 times the median household income of $113,403, which is more affordable than 26% of Washington towns. Median rent is $1,734 a month. 79.6% of households own their home.
| Housing | Lake Cassidy | Typical Washington town |
|---|---|---|
| Median home value | $705,000 | $475,000 |
| Median rent | $1,734 | $1,597 |
| Median household income | $113,403 | $90,625 |
| Home value ÷ income | 6.2× | 5.3× |
| Homeownership | 79.6% | 74.4% |
| Median year built | 1989 | 1985 |
| Seasonal / vacation homes | 0.0% | — |
Who lives in Lake Cassidy
| People | Lake Cassidy | Typical Washington town |
|---|---|---|
| Median age | 50.7 | 40.1 |
| Age 65 and over | 20.7% | 17.9% |
| Under 18 | 16.3% | — |
| Bachelor's degree or higher | 25.0% | 27.6% |
| Below the poverty line | 4.9% | 8.5% |
| Veterans | 12.5% | — |
| Born outside the U.S. | 5.0% | — |
| Work from home | 13.7% | 13.4% |
| Average commute | 29.0 min | 27.1 min |
| Homes with broadband | 90.4% | 93.9% |
Weather in Lake Cassidy
July highs average 74.8°F and January lows 34.6°F. About 40.2 inches of rain and melted snow fall a year, with 4.0 inches of snow (typical Washington town: 4.0 in). Expect about 1 days a year at 90°F or hotter and 51 nights at or below freezing.
Tornadoes, storms and disasters
1 tornado has passed within 10 miles of Lake Cassidy since 1950, compared with 1 for the typical Washington town. 1 rated (E)F2 or stronger. The strongest, an F2, struck on November 24, 1970 about 5.9 miles from the town center. The most recent was on November 24, 1970.
Hail of 1 inch or larger has been reported within 10 miles 1 times; the largest was 1.00 inches on April 15, 2006.
Severe weather in Snohomish County since 1996
Snohomish County has been included in 37 federal disaster or emergency declarations since 1953, most often for fire, flood, biological.
| Declared | Incident | Declaration |
|---|---|---|
| April 7, 2026 | Flood | DR-4906: Severe Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides |
| December 12, 2025 | Flood | EM-3629: Severe Storms, Straight-Line Winds, Flooding, Landslides, And Mudslides |
| January 12, 2023 | Severe Storm | DR-4682: Severe Winter Storm, Straight-Line Winds, Flooding, Landslides, And Mudslides |
| September 10, 2022 | Fire | FM-5455: Bolt Creek Fire |
| April 8, 2021 | Severe Storm | DR-4593: Severe Winter Storm, Straight-Line Winds, Flooding, Landslides, And Mudslides |
Jobs and pay in Snohomish County
Snohomish County had 297,617 jobs in 2024, paying an average of $79,940 a year. Unemployment was 3.5% in 2023; in Lake Cassidy itself the ACS puts it at 1.6%.
Towns near Lake Cassidy
- Lochsloy, WA2.0 mi · 2,806 people · home $610,200
- Marysville, WA3.5 mi · 70,714 people · home $567,900
- Sisco Heights, WA3.8 mi · 3,140 people · home $735,000
- Lake Stevens, WA4.4 mi · 35,630 people · home $635,600
- Granite Falls, WA5.5 mi · 4,450 people · home $562,700
- Canyon Creek, WA5.5 mi · 3,445 people · home $446,300
- Cavalero, WA6.3 mi · 5,232 people · home $656,000
- Bunk Foss, WA7.2 mi · 3,680 people · home $831,000
Lake Cassidy questions
Is Lake Cassidy, Washington a good place to retire?
On The Town Files lifestyle rankings, Lake Cassidy scores better for retirees than 22% of Washington towns and quieter than 55%. 20.7% of residents are 65 or older (median age 50.7).
How much does a house cost in Lake Cassidy?
The median owner-occupied home in Lake Cassidy is valued at $705,000 (Census ACS 2020–2024), against a median household income of $113,403, so homes cost about 6.2 times income. Median rent is $1,734 a month.
What is the weather like in Lake Cassidy?
July highs average 74.8°F and January lows 34.6°F (NOAA 1991–2020 normals). It gets about 40.2 inches of precipitation a year and 4.0 inches of snow.
Does Lake Cassidy get tornadoes?
1 tornado has passed within 10 miles of Lake Cassidy since 1950 (NOAA Storm Events); the strongest was a F2 on November 24, 1970. The typical Washington town has had 1.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)