Migration to and from Lake County, Montana
Where Lake 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
2,940
people moved in (5-yr)
Total outflow
1,811
people moved out (5-yr)
Net migration
+1,129
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Missoula County | Montana | 341 |
| Gallatin County | Montana | 284 |
| Flathead County | Montana | 238 |
| Lincoln County | Montana | 137 |
| Grant County | Washington | 114 |
| King County | Washington | 103 |
| Glacier County | Montana | 89 |
| Lewis and Clark County | Montana | 84 |
| Matanuska-Susitna Borough | Alaska | 82 |
| San Diego County | California | 82 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Flathead County | Montana | 325 |
| Missoula County | Montana | 290 |
| Lewis and Clark County | Montana | 119 |
| Iron County | Utah | 103 |
| Gallatin County | Montana | 95 |
| Yellowstone County | Montana | 77 |
| Honolulu County | Hawaii | 69 |
| Glacier County | Montana | 66 |
| Riverside County | California | 42 |
| Whitman County | Washington | 39 |
Explore Lake County
- Business data for Lake CountyConstruction sector establishments, employment, payroll
- Cities in MontanaACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in MTGovBids: RFPs, awards, NAICS matching
- New business filings in MontanaNewFilings: 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: 30047.