Migration to and from Missoula County, Montana
Where Missoula 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
12,278
people moved in (5-yr)
Total outflow
8,407
people moved out (5-yr)
Net migration
+3,871
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Flathead County | Montana | 1,029 |
| Yellowstone County | Montana | 683 |
| Cascade County | Montana | 575 |
| Ravalli County | Montana | 461 |
| King County | Washington | 424 |
| Chouteau County | Montana | 342 |
| Gallatin County | Montana | 341 |
| Lake County | Montana | 290 |
| Asia | 267 | |
| Lewis and Clark County | Montana | 236 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Yellowstone County | Montana | 513 |
| Ravalli County | Montana | 474 |
| Flathead County | Montana | 439 |
| Lake County | Montana | 341 |
| Silver Bow County | Montana | 334 |
| Cascade County | Montana | 325 |
| Gallatin County | Montana | 298 |
| Dawson County | Montana | 292 |
| Lewis and Clark County | Montana | 265 |
| Spokane County | Washington | 255 |
Explore Missoula County
- Business data for Missoula 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: 30063.