Gilliam County's estimated 2025 population is 2,062 with a growth rate of 0.88% in the past year according to the most recent United States census data. Gilliam County is the 34th largest county in Oregon. The 2010 population was 1,880 and has seen a growth of 9.68% since that time.
Data after 2023 is projected based on recent change
The racial composition of Gilliam County includes 84.07% White, and smaller percentages for other race, Native American, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
White
Two or more races
Other race
Native American
Asian
Black or African American
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,683 | 84.07% |
| Two or more races | 269 | 13.44% |
| Other race | 24 | 1.2% |
| Native American | 18 | 0.9% |
| Asian | 8 | 0.4% |
| Black or African American | 0 | 0% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
Married
Widowed
Divorced
Separated
Never Married
Gilliam County's average per capita income is $49,704. Household income levels show a median of $64,219. The poverty rate stands at 12.63%.
Name | Median | Mean |
|---|---|---|
| Families | $77,734 | $97,002 |
| Married Families | $77,159 | - |
| Households | $64,219 | $77,640 |
| Non Families | $35,192 | $51,664 |
Average Income
Median Household Income
Poverty Rate
