| Name | Kittitas County |
| State | Washington |
| FIPS Code | 53037 |
| County Seat | Ellensburg |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2024) | 47,845 |
| Population Growth Rate(2020-2024) | 2.74% |
| Majority Ethnicity | White 85.67% |
| Public School Majority Ethnicity | White 73% |
| Partisan Voting Index | Republican:+6 |
| Unemployment Rate (May 2026) | 5.9% |
| Sales Tax Rate (2025) | 8.3% |
| Area Code(s) | 509 / 425 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 85.67% |
| African American | 1.1% |
| Hispanic | 10.76% |
| Asian | 1.84% |
| Native American | 0.52% |
| Hawaiin/Pacific Islander | 0.11% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 72.76% |
| African American | 0.79% |
| Hispanic | 20.08% |
| Asian | 1.48% |
| Native American | 0.56% |
| Hawaiin/Pacific Islander | 0.08% |