Cathlamet is a town located in Wahkiakum County, Washington. Cathlamet has a 2025 population of 619 . It is also the county seat of Wahkiakum County . Cathlamet is currently growing at a rate of 1.81% annually and its population has increased by 9.95% since the most recent census, which recorded a population of 563 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. For every 100 females there are 81.8 males.
Data after 2023 is projected based on recent change
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.
White (94.38%)
Two or more races (2.81%)
Native American (1.58%)
Black or African American (0.53%)
Other race (0.53%)
Asian (0.18%)
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% |
Married
Widowed
Divorced
Separated
Never Married
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%.
Name | Median | Mean |
|---|---|---|
| Married Families | $59,022 | - |
| Families | $58,641 | $74,383 |
| Households | $57,750 | $66,875 |
| Non Families | $43,125 | $52,146 |
Average Income
Median Household Income
Poverty Rate