Market insights · Washington
Kittitas County, WA: growth, migration and housing
Kittitas County has 48,803 residents, up 4.2% since 2020 (+1.4% in the last year). In 2022–2023, 1,746 households moved in and 1,571 moved out (+175 net), bringing in a net $63.5M of income. Median household income is $73,804, the median home $497,400 and median rent $1,341 a month.
In Washington: 20th of 39 counties for 5-year population growth · 11th of 39 counties for net in-migration (per resident) · 22nd of 39 counties for median household income · 12th of 39 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Kittitas County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| King County, WA | 439 | $95.3M |
| Yakima County, WA | 136 | $6.1M |
| Snohomish County, WA | 131 | $12.1M |
| Pierce County, WA | 130 | $10.6M |
| Benton County, WA | 47 | $2.0M |
| Grant County, WA | 47 | $2.5M |
| Chelan County, WA | 36 | $1.9M |
| Spokane County, WA | 35 | $1.3M |
Where leavers went
Top counties by households leaving Kittitas County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| King County, WA | 265 | $20.0M |
| Pierce County, WA | 124 | $5.9M |
| Yakima County, WA | 114 | $6.0M |
| Snohomish County, WA | 81 | $4.9M |
| Benton County, WA | 55 | $3.4M |
| Spokane County, WA | 51 | $2.6M |
| Grant County, WA | 39 | $2.6M |
| Chelan County, WA | 37 | $2.6M |
BizyFi in Kittitas County
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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.