Gilliam County's estimated 2026 population is 1,958 with a growth rate of -0.66% in the past year according to the most recent United States census data. Gilliam County is the 35th largest county in Oregon. The 2010 population was 1,880 and has seen a growth of 4.15% since that time.
Data after 2023 is projected based on recent change
Overall: 50.1 years
Female: 53.2 years
Male: 43.5 years
There are 1,596 adults, (639 of whom are seniors) in Gilliam County.
Female: 918 (46.6%)
Male: 1,053 (53.4%)
The racial composition of Gilliam County includes 81.28% White, and smaller percentages for Native American, other race and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,602 | 81.28% |
| Two or more races | 315 | 15.98% |
| Native American | 32 | 1.62% |
| Other race | 22 | 1.12% |
Gilliam County's average per capita income is $51,042. Household income levels show a median of $66,917. The poverty rate stands at 15.25%.
Name | Median | Mean |
|---|---|---|
| Families | $90,865 | $103,594 |
| Married Families | $89,444 | - |
| Households | $66,917 | $81,672 |
| Non Families | $32,813 | $51,939 |
Average Income
Median Household Income
Poverty Rate
