Migration to and from Island County, Washington
Where Island 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
7,843
people moved in (5-yr)
Total outflow
8,521
people moved out (5-yr)
Net migration
-678
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Snohomish County | Washington | 1,184 |
| King County | Washington | 1,088 |
| Skagit County | Washington | 383 |
| Ventura County | California | 368 |
| Pierce County | Washington | 323 |
| Asia | 314 | |
| Kitsap County | Washington | 298 |
| Virginia Beach City | Virginia | 215 |
| Grays Harbor County | Washington | 183 |
| Whatcom County | Washington | 178 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| King County | Washington | 780 |
| San Diego County | California | 573 |
| Snohomish County | Washington | 551 |
| Whatcom County | Washington | 454 |
| Skagit County | Washington | 358 |
| Ventura County | California | 254 |
| Columbia County | Georgia | 253 |
| Kittitas County | Washington | 214 |
| Mohave County | Arizona | 192 |
| Maricopa County | Arizona | 184 |
Explore Island County
- Business data for Island CountyConstruction sector establishments, employment, payroll
- Cities in WashingtonACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in WAGovBids: RFPs, awards, NAICS matching
- New business filings in WashingtonNewFilings: 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: 53029.