Lake Cassidy Flag

Lake Cassidy

County Seat:
No
Area (mi²):
10.59
State:
Washington

Lake Cassidy is a CDP located in Snohomish County, Washington. Lake Cassidy has a 2026 population of 3,319. Lake Cassidy is currently declining at a rate of -0.18% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in Lake Cassidy is $113,403 with a poverty rate of 4.92%. The median age in Lake Cassidy is 50.7 years: 52.2 years for males, and 49.5 years for females. For every 100 females there are 87.5 males.

3.3K
Total Population
313
Density (mi²)
-6 -0.18%
Growth

Lake Cassidy Population

Lake Cassidy Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20263,319-6-0.18%
20253,325-6-0.18%

Median Age

Overall: 50.7 years
Female: 49.5 years
Male: 52.2 years

Lake Cassidy Adults

There are 2,756 adults, (682 of whom are seniors) in Lake Cassidy.

Sex Ratio

Female: 1,756 (53.3%)
Male: 1,536 (46.7%)

Demographics

The racial composition of Lake Cassidy includes 83.44% White, 6.14% other race, 4.25% Black or African American, and smaller percentages for Asian, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White2,74783.44%
Other race2026.14%
Two or more races1624.92%
Black or African American1404.25%
Asian220.67%
Native American190.58%
Race
Population ↓
Percentage (of total)
Other race1785.41%
White140.43%
Race
Population ↓
Percentage (of total)
White2,73383.02%
Two or more races1624.92%
Black or African American1404.25%
Other race240.73%
Asian220.67%
Native American190.58%

Lake Cassidy Marital Status

Economics and Income Statistics

Lake Cassidy 's average per capita income is $65,551. Household income levels show a median of $113,403. The poverty rate stands at 4.92%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$158,750-
Families$126,979$153,105
Households$113,403$128,038
Non Families$73,977$67,430

$65,551

Average Income

$113,403

Median Household Income

4.92%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)