Kittitas County's estimated 2026 population is 49,499 with a growth rate of 1.43% in the past year according to the most recent United States census data. Kittitas County is the 23rd largest county in Washington. The 2010 population was 40,992 and has seen a growth of 20.75% since that time.
Data after 2023 is projected based on recent change
Overall: 35.8 years
Female: 36 years
Male: 35.7 years
There are 39,300 adults, (8,040 of whom are seniors) in Kittitas County.
Female: 23,500 (49.8%)
Male: 23,672 (50.2%)
The racial composition of Kittitas County includes 82.08% White, 4.89% other race, and smaller percentages for Asian, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 38,721 | 82.08% |
| Two or more races | 4,536 | 9.62% |
| Other race | 2,308 | 4.89% |
| Asian | 813 | 1.72% |
| Black or African American | 532 | 1.13% |
| Native American | 237 | 0.5% |
| Native Hawaiian or Pacific Islander | 25 | 0.05% |
Kittitas County's average per capita income is $54,670. Household income levels show a median of $73,804. The poverty rate stands at 14.38%.
Name | Median | Mean |
|---|---|---|
| Married Families | $111,346 | $139,505 |
| Families | $101,809 | $127,100 |
| Households | $73,804 | $102,663 |
| Non Families | $40,400 | $60,464 |
Average Income
Median Household Income
Poverty Rate