Migration to and from Lewis County, Idaho
Where Lewis 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
324
people moved in (5-yr)
Total outflow
545
people moved out (5-yr)
Net migration
-221
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Idaho County | Idaho | 85 |
| Nez Perce County | Idaho | 44 |
| Clearwater County | Idaho | 25 |
| Linn County | Oregon | 21 |
| Yakima County | Washington | 15 |
| Placer County | California | 10 |
| Lake County | California | 9 |
| Clark County | Washington | 8 |
| Humboldt County | California | 7 |
| Bonneville County | Idaho | 7 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Ada County | Idaho | 256 |
| Nez Perce County | Idaho | 115 |
| Idaho County | Idaho | 89 |
| Richardson County | Nebraska | 22 |
| Multnomah County | Oregon | 16 |
| Latah County | Idaho | 12 |
| Granite County | Montana | 12 |
| Garfield County | Washington | 9 |
| Kootenai County | Idaho | 5 |
| Clearwater County | Idaho | 3 |
Explore Lewis County
- Business data for Lewis CountyConstruction sector establishments, employment, payroll
- Cities in IdahoACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in IDGovBids: RFPs, awards, NAICS matching
- New business filings in IdahoNewFilings: 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: 16061.