Market insights · Washington
Benton County, WA: growth, migration and housing
Benton County has 221,722 residents, up 6.9% since 2020 (+1.3% in the last year). In 2022–2023, 6,086 households moved in and 5,553 moved out (+533 net), bringing in a net $11.2M of income. Median household income is $89,874, the median home $407,800 and median rent $1,306 a month.
In Washington: 7th of 39 counties for 5-year population growth · 18th of 39 counties for net in-migration (per resident) · 9th of 39 counties for median household income · 21st of 39 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Benton County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Franklin County, WA | 1,501 | $80.6M |
| Yakima County, WA | 573 | $28.5M |
| King County, WA | 277 | $29.1M |
| Spokane County, WA | 197 | $10.9M |
| Grant County, WA | 174 | $11.0M |
| Walla Walla County, WA | 168 | $9.7M |
| Umatilla County, OR | 142 | $8.1M |
| Pierce County, WA | 125 | $9.4M |
Where leavers went
Top counties by households leaving Benton County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Franklin County, WA | 1,320 | $77.6M |
| Yakima County, WA | 346 | $16.6M |
| King County, WA | 281 | $20.3M |
| Spokane County, WA | 242 | $13.0M |
| Umatilla County, OR | 143 | $6.5M |
| Walla Walla County, WA | 143 | $7.5M |
| Maricopa County, AZ | 116 | $11.7M |
| Snohomish County, WA | 101 | $7.7M |
BizyFi in Benton County
Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Washington companies.
← All Washington counties · National rankings
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.