Migration to and from Yellowstone County, Montana
Where Yellowstone 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
9,273
people moved in (5-yr)
Total outflow
9,510
people moved out (5-yr)
Net migration
-237
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Ravalli County | Montana | 850 |
| Missoula County | Montana | 513 |
| Park County | Wyoming | 437 |
| Beaverhead County | Montana | 326 |
| Carbon County | Montana | 324 |
| Big Horn County | Montana | 305 |
| Gallatin County | Montana | 278 |
| Davis County | Utah | 190 |
| Custer County | Montana | 182 |
| Washington County | Oregon | 169 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Missoula County | Montana | 683 |
| Gallatin County | Montana | 386 |
| El Paso County | Colorado | 286 |
| Lewis and Clark County | Montana | 281 |
| Stillwater County | Montana | 270 |
| Cascade County | Montana | 242 |
| Stark County | North Dakota | 234 |
| Flathead County | Montana | 203 |
| Utah County | Utah | 186 |
| Salt Lake County | Utah | 170 |
Explore Yellowstone County
- Business data for Yellowstone 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: 30111.