Markham

County:: Grays Harbor County
County Seat:: No
Area (mi²):: 1.124
State:: Washington

Markham is a CDP located in Grays Harbor County, Washington. Markham has a 2025 population of 137. Markham is currently growing at a rate of 0.74% annually and its population has increased by 73.42% since the most recent census, which recorded a population of 79 in 2020.

The average household income in Markham is $102,704 with a poverty rate of 0%. The median age in Markham is 66 years: 73 years for males, and 62.5 years for females.

Demographics

The racial composition of Markham includes 71.1% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	123	71.1%
Two or more races	50	28.9%
Black or African American	0	0%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Markham Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Markham's average per capita income is $26,571. Household income levels show a median of $88,487. The poverty rate stands at 0%.

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
Households	$88,487	$102,704
Married Families	$88,355	-
Families	-	$123,773
Non Families	-	-

$26,571

Average Income

$88,487

Median Household Income

0%

Poverty Rate