Grand Mound

County:: Lewis County
County Seat:: No
Area (mi²):: 4.15
State:: Washington

Grand Mound is a CDP located in Lewis County, Washington. Grand Mound has a 2025 population of 3,557. Grand Mound is currently growing at a rate of 1.08% annually but its population has decreased by -10.11% since the most recent census, which recorded a population of 3,957 in 2020.

The average household income in Grand Mound is $81,209 with a poverty rate of 8.43%.The median age in Grand Mound is 33.2 years: 31 years for males, and 35.2 years for females.

Demographics

The racial composition of Grand Mound includes 65.18% White, 21.58% other race, 3.93% Native American, and smaller percentages for Black or African American, Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	2,419	65.18%
Other race	801	21.58%
Two or more races	301	8.11%
Native American	146	3.93%
Black or African American	24	0.65%
Asian	20	0.54%

Grand Mound Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grand Mound's average per capita income is $46,452. Household income levels show a median of $77,000. The poverty rate stands at 8.43%.

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	$95,544	-
Families	$84,231	$86,613
Households	$77,000	$81,209
Non Families	$55,677	$66,034

$46,452

Average Income

$77,000

Median Household Income

8.43%

Poverty Rate