Migration to and from Twin Falls County, Idaho
Where Twin Falls 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
7,040
people moved in (5-yr)
Total outflow
4,980
people moved out (5-yr)
Net migration
+2,060
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Gooding County | Idaho | 1,033 |
| Jerome County | Idaho | 540 |
| Ada County | Idaho | 298 |
| Fairfield County | Connecticut | 256 |
| Newtown Town | Fairfield County, Connecticut | 256 |
| Minidoka County | Idaho | 246 |
| Valley County | Idaho | 213 |
| Bannock County | Idaho | 187 |
| Washoe County | Nevada | 176 |
| Canyon County | Idaho | 173 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Ada County | Idaho | 734 |
| Jerome County | Idaho | 707 |
| Bannock County | Idaho | 247 |
| Santa Barbara County | California | 209 |
| Elmore County | Idaho | 170 |
| Salt Lake County | Utah | 168 |
| Cassia County | Idaho | 149 |
| Clark County | Nevada | 140 |
| Rockland County | New York | 116 |
| Clarkstown Town | Rockland County, New York | 116 |
Explore Twin Falls County
- Business data for Twin Falls 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: 16083.