Wahkiakum County's 2026 population is estimated at 4,866, reflecting a 0.68% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Wahkiakum County is the 37th largest county in Washington. The 2010 population was 3,983 and has grown 22.17% since 2010.
Data after 2023 is projected based on recent change
Overall: 54.5 years
Female: 56.4 years
Male: 50.3 years
There are 3,841 adults, (1,590 of whom are seniors) in Wahkiakum County.
Female: 2,290 (49.2%)
Male: 2,368 (50.8%)
The racial composition of Wahkiakum County includes 87.68% White, and smaller percentages for Asian, Black or African American, Native Hawaiian or Pacific Islander, Native American, other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,084 | 87.68% |
| Two or more races | 418 | 8.97% |
| Asian | 78 | 1.67% |
| Black or African American | 39 | 0.84% |
| Native Hawaiian or Pacific Islander | 25 | 0.54% |
| Native American | 10 | 0.21% |
| Other race | 4 | 0.09% |
Wahkiakum County 's average per capita income is $36,656. Household income levels show a median of $62,653. The poverty rate stands at 17.82%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $78,676 | - |
| Families | $74,682 | $89,669 |
| Households | $62,653 | $83,288 |
| Non Families | $36,250 | $67,897 |
Average Income
Median Household Income
Poverty Rate