Market insights · Oregon
Washington County, OR: growth, migration and housing
Washington County has 611,708 residents, up 1.8% since 2020 (+0.5% in the last year). In 2022–2023, 18,769 households moved in and 20,154 moved out (-1,385 net), while a net $273.3M of income left. Median household income is $107,772, the median home $588,000 and median rent $1,849 a month.
In Oregon: 14th of 36 counties for 5-year population growth · 31st of 36 counties for net in-migration (per resident) · 1st of 36 counties for median household income · 4th of 36 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Washington County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Multnomah County, OR | 4,496 | $462.7M |
| Clackamas County, OR | 1,829 | $153.1M |
| Clark County, WA | 720 | $47.0M |
| Yamhill County, OR | 599 | $37.4M |
| Marion County, OR | 565 | $30.3M |
| Los Angeles County, CA | 453 | $46.6M |
| Maricopa County, AZ | 358 | $29.9M |
| Lane County, OR | 350 | $19.1M |
Where leavers went
Top counties by households leaving Washington County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Multnomah County, OR | 4,318 | $294.6M |
| Clackamas County, OR | 2,049 | $208.1M |
| Clark County, WA | 1,206 | $146.9M |
| Yamhill County, OR | 867 | $76.6M |
| Marion County, OR | 663 | $41.3M |
| King County, WA | 510 | $64.7M |
| Maricopa County, AZ | 481 | $62.6M |
| Columbia County, OR | 385 | $29.7M |
BizyFi in Washington County
5 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Oregon companies.
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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.