Zillah city, Washington
Official LSAD Designation: Zillah city • Census GEOID: 5380500
• Yakima County
Demographics & Population Profile
Population and demographics for Zillah city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 3,111 | — | 2025 | Census |
| Median Age | 35.7 yrs | ±6.1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 1,110 | ±136 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).