Migration to and from Washington County, Oregon
Where Washington County residents came from and where they went over the 5-year window 2016-2020. Census ACS County-to-County Migration Flows, 2020 5-yr (frozen vintage).
Total inflow
44,231
people moved in (5-yr)
Total outflow
38,577
people moved out (5-yr)
Net migration
+5,654
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Multnomah County | Oregon | 8,650 |
| Clackamas County | Oregon | 3,357 |
| Asia | 2,411 | |
| Marion County | Oregon | 1,174 |
| Los Angeles County | California | 1,050 |
| Benton County | Oregon | 915 |
| Yamhill County | Oregon | 906 |
| Clark County | Washington | 903 |
| Santa Clara County | California | 738 |
| Polk County | Oregon | 635 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Multnomah County | Oregon | 6,561 |
| Clackamas County | Oregon | 3,325 |
| Clark County | Washington | 1,607 |
| Maricopa County | Arizona | 1,589 |
| Yamhill County | Oregon | 1,503 |
| Marion County | Oregon | 1,328 |
| King County | Washington | 1,114 |
| Lane County | Oregon | 1,076 |
| Benton County | Oregon | 965 |
| Lubbock County | Texas | 695 |
Explore Washington County
- Business data for Washington CountyConstruction sector establishments, employment, payroll
- Cities in OregonACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in ORGovBids: RFPs, awards, NAICS matching
- New business filings in OregonNewFilings: fresh SOS registrations
Methodology
- Counts represent the number of people aged 1+ who reported a different residence at the survey reference date than they did one year earlier, aggregated across the 5-year sample window 2016-2020.
- Outbound (OUT) flows are reported less frequently than inbound (IN) because the survey captures the destination side of each move. Many county pairs have null OUT counts, which is normal.
- "Total inflow" sums the published MOVEDIN counts across all origin counties, including foreign-region inflows (Africa, Asia, Central America, etc.). It is not the same as net population change.
- Frozen vintage. The Census Bureau has not released a newer county-to-county migration flows file. The 2020 5-yr vintage (covering 2016-2020) is the latest available as of build date.
Source: U.S. Census Bureau, American Community Survey, County-to-County Migration Flows: 2016-2020. Vintage: 2020 5-yr. Generated: 2026-05-28. FIPS: 41067.