Citable statement
In ACS 2024, 1,318 people living in Montana reported living in Idaho one year earlier (± 693, 90% margin of error).
- Source ·
- U.S. Census Bureau, State-to-State Migration Flows: 2024 American Community Survey 1-Year Estimates (Table T13). Official release Jan 21, 2026. Margins of error are 90% MOE.
- Status ·
- Latest available as of Sep 7, 2026. No 2025 state-to-state table is published.
- Limitation ·
- A previous-residence count of people, not household-goods shipments, trucks, or permanent relocations. The distance on this page is state-centroid straight-line, not driving miles. No price, fuel, or toll figure exists in this dataset.
- Cite as ·
- IMMERVEIL, “Idaho to Montana migration, ACS 2024”, https://immerveil.fyi/routes/idaho-to-montana — derived from U.S. Census Bureau ACS 2024 1-year Table T13.
What the figure measures
Tabulation of current state of residence crossed by state of residence 1 year ago. This is a 1-year mobility / previous-residence statistic, not a count of household-goods shipments.
Universe: population 1 year and over. Dataset: State-to-State Migration Flows: 2024 American Community Survey 1-Year Estimates (Table T13). Official release: Jan 21, 2026. Last checked: Sep 7, 2026. Status: LATEST AVAILABLE. Margins of error in these tables are Census Bureau 90% margins of error.
Corridor table
| Series | Estimate | 90% MOE |
|---|---|---|
| Idaho → Montana | 1,318 | ± 693 |
| Montana → Idaho | 2,214 | ± 1,018 |
| Idaho out-of-state movers | 60,351 | ± 6,848 |
| Montana in-from-other-state movers | 36,159 | ± 4,898 |
| U.S. different-state movers | 7,157,607 | ± 75,154 |
Corridor in context · derived from the table
What makes this pair different
- Rank among Idaho outbound
- 12th of 47
- Rank among Montana inbound
- 10th of 45
- Rank among all state pairs
- 1014th of 2,096
- Relative margin of error
- 52.6%
- Net direction at 90%
- Not established
- Geography
- Shared land border
2.2% of outbound
3.6% of inbound
Eligible pairs in ACS 2024 T13
90% interval 625–2,011
Difference ± 1,231
Regional (250–750 centroid miles)
Montana is the 12th largest of 47 outbound destinations recorded for Idaho — 2.2% of the 60,351 people who left Idaho for another state.
Idaho is the 10th largest of 45 inbound origins recorded for Montana — 3.6% of the 36,159 people who arrived in Montana from another state.
Nationally, this is the 1014th largest of 2,096 state-to-state flows that carry an estimate, a margin of error, and a reverse estimate in the 2024 table.
The 90% margin of error is 52.6% of the estimate: the Census interval runs from 625 to 2,011. Treat any single-year comparison inside that band as noise.
Montana → Idaho exceeds Idaho → Montana by 896 (1.68× the other direction), but that difference sits inside its own 90% margin of error (± 1,231). At 90% confidence the table does not establish a net direction for this pair.
Idaho and Montana share a land border. 304 state-centroid straight-line miles; IMMERVEIL planning band: Regional (250–750 centroid miles). Not driving miles.
Derivations: ranks are competition ranks among cells that carry an estimate (ties share a rank); shares divide the pair estimate by the state’s ACS total; the difference test uses √(MOE₁² + MOE₂²) per Census Bureau statistical-testing guidance; the distance band is an IMMERVEIL planning label on centroid miles, not a tariff zone. Corridor context module v1.0.
Distance note
304 miles is the state-centroid straight-line distance between TIGER-derived geographic centroids of Idaho and Montana. It is not driving mileage, not a highway recommendation, and not a shipping zone. Driving or route miles require a city-to-city pair and a licensed routing provider — this page does not invent that figure. State centroids are computed with d3.geoCentroid on TIGER-derived polygons. Distances shown on state-to-state pages are state-centroid straight-line distances. They are not driving miles, not a highway recommendation, and not a shipping zone. Driving distance requires a city pair and a routing provider.
Planning checklist
- Confirm whether the shipment is interstate (subject to federal household-goods rules) or intrastate.
- Look up the mover’s USDOT before paying a deposit. Open Mover Check.
- Read the estimate type. Open Quote Check.
- Storage between pickup and delivery is common on long corridors — treat unit size as a range. Storage calculator.
Check a mover for this corridor
This pair is rendered for utility but is noindex until the ACS estimate, reverse flow, centroid distance, and relative margin of error pass the publication gate. Below index threshold (estimate ≥ 5000 and 90% MOE ≤ 50% of estimate). Page still renders.
Questions this page answers
- How many people moved from Idaho to Montana according to the Census?
- The latest official figure is the ACS 2024 1-year estimate of people living in Montana whose residence one year earlier was Idaho: 1,318 ± 693 (90% margin of error). It is a previous-residence statistic, not a count of household-goods shipments, trucks, or permanent relocations.
- Do more people move from Idaho to Montana, or the other way?
- Montana to Idaho is nominally larger (1,318 versus 2,214), but the difference of 896 is inside its own 90% margin of error (± 1,231). The table does not establish a net direction for this pair.
- How important is Montana as a destination for people leaving Idaho?
- In ACS 2024, Montana ranks 12th of 47 recorded destinations for people whose residence one year earlier was Idaho, taking 2.2% of that state's out-of-state movers. Ranks are competition ranks among cells with an estimate; ties share a rank.
- Is the Idaho–Montana mileage on this page a driving distance?
- No. 304 miles is the state-centroid straight-line (great-circle) distance between TIGER-derived geographic centroids. It is not driving miles, not a highway recommendation, and not a shipping zone.
- Is 2024 still the latest official state-to-state migration table?
- Yes. The Census Bureau released 2024 State-to-State Migration Flows on 2026-01-21. No 2025 ACS state-to-state table is published. Calendar year is not the dataset year.
- How should I check a mover for a Idaho to Montana shipment?
- Use the USDOT printed on the written estimate. Look the number up in Mover Check (live FMCSA MCMIS census) and confirm the record on FMCSA SAFER before paying a deposit. IMMERVEIL does not rank, score, or endorse carriers.
- How much does it cost to move from Idaho to Montana?
- IMMERVEIL does not invent a mover price, fuel, or toll bracket. ACS Table T13 and the FMCSA census do not contain those figures. Quote Check performs arithmetic on the amount printed on your estimate — including the 110% collect-on-delivery figure for a qualifying interstate non-binding estimate.