Migration to and from Jefferson County, Idaho
Where Jefferson 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
2,613
people moved in (5-yr)
Total outflow
1,992
people moved out (5-yr)
Net migration
+621
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Fremont County | Idaho | 355 |
| Madison County | Idaho | 350 |
| Bonneville County | Idaho | 289 |
| Adams County | Nebraska | 244 |
| Teller County | Colorado | 152 |
| Larimer County | Colorado | 142 |
| Valencia County | New Mexico | 137 |
| Bannock County | Idaho | 121 |
| Europe | 79 | |
| Franklin County | Idaho | 74 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Bonneville County | Idaho | 829 |
| Madison County | Idaho | 324 |
| Fremont County | Idaho | 137 |
| Bannock County | Idaho | 78 |
| Arapahoe County | Colorado | 65 |
| Jasper County | Missouri | 61 |
| Twin Falls County | Idaho | 59 |
| Bingham County | Idaho | 48 |
| Cache County | Utah | 41 |
| Wichita County | Texas | 32 |
Explore Jefferson County
- Business data for Jefferson 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: 16051.