Cathlamet

County:: Wahkiakum County
County Seat:: Yes
Area (mi²):: 0.506
State:: Washington

Cathlamet is a town located in Wahkiakum County, Washington. Cathlamet has a 2025 population of 616. It is also the county seat of Wahkiakum County. Cathlamet is currently growing at a rate of 1.82% annually and its population has increased by 9.8% since the most recent census, which recorded a population of 561 in 2020.

The average household income in Cathlamet is $66,875 with a poverty rate of 16.97%.The median age in Cathlamet is 57.3 years: 53.8 years for males, and 61.4 years for females.

Demographics

The racial composition of Cathlamet includes 94.38% White, and smaller percentages for Two or more races, Native American, Black or African American, other race, Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	537	94.38%
Two or more races	16	2.81%
Native American	9	1.58%
Black or African American	3	0.53%
Other race	3	0.53%
Asian	1	0.18%

Cathlamet Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cathlamet's average per capita income is $34,886. Household income levels show a median of $57,750. The poverty rate stands at 16.97%.

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	$59,022	-
Families	$58,641	$74,383
Households	$57,750	$66,875
Non Families	$43,125	$52,146

$34,886

Average Income

$57,750

Median Household Income

16.97%

Poverty Rate