Adams County's estimated 2025 population is 20,664 with a growth rate of -0.38% in the past year according to the most recent United States census data. Adams County is the 31st largest county in Washington. The 2010 population was 18,791 and has seen a growth of 9.97% since that time.
Data after 2023 is projected based on recent change
The racial composition of Adams County includes 47.75% White, 28.46% other race, and smaller percentages for Native American, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
White
Other race
Two or more races
Native American
Asian
Black or African American
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,880 | 47.75% |
| Other race | 5,889 | 28.46% |
| Two or more races | 4,143 | 20.02% |
| Native American | 516 | 2.49% |
| Asian | 129 | 0.62% |
| Black or African American | 77 | 0.37% |
| Native Hawaiian or Pacific Islander | 56 | 0.27% |
Married
Widowed
Divorced
Separated
Never Married
Adams County's average per capita income is $36,620. Household income levels show a median of $65,042. The poverty rate stands at 20.49%.
Name | Median | Mean |
|---|---|---|
| Married Families | $82,778 | - |
| Families | $70,719 | $86,519 |
| Households | $65,042 | $82,379 |
| Non Families | $34,583 | $58,382 |
Average Income
Median Household Income
Poverty Rate