Marietta-Alderwood

County:: Whatcom County
County Seat:: No
Area (mi²):: 5.816
State:: Washington

Marietta-Alderwood is a CDP located in Whatcom County, Washington. Marietta-Alderwood has a 2025 population of 3,154. Marietta-Alderwood is currently declining at a rate of -1.56% annually and its population has decreased by -8.92% since the most recent census, which recorded a population of 3,463 in 2020.

The average household income in Marietta-Alderwood is $102,078 with a poverty rate of 12.64%. The median age in Marietta-Alderwood is 40.5 years: 41.4 years for males, and 35.5 years for females.

Demographics

The racial composition of Marietta-Alderwood includes 68.62% White, 11.15% other race, 4.31% Asian, and smaller percentages for Native Hawaiian or Pacific Islander, Native American, Black or African American and multiracial populations.

Population by Race

White

Two or more races

Other race

Asian

Native Hawaiian or Pacific Islander

Native American

Black or African American

Race	Population	Percentage (of total)
White	2,449	68.62%
Two or more races	496	13.9%
Other race	398	11.15%
Asian	154	4.31%
Native Hawaiian or Pacific Islander	44	1.23%
Native American	28	0.78%
Black or African American	0	0%

Marietta-Alderwood Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Marietta-Alderwood's average per capita income is $51,179. Household income levels show a median of $62,243. The poverty rate stands at 12.64%.

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	$96,167	-
Families	$72,109	$122,232
Households	$62,243	$102,078
Non Families	$49,423	$70,420

$51,179

Average Income

$62,243

Median Household Income

12.64%

Poverty Rate