Citable statement
In ACS 2024, 2,231 people living in Iowa reported living in South Dakota one year earlier (± 878, 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, “South Dakota to Iowa migration, ACS 2024”, https://immerveil.fyi/routes/south-dakota-to-iowa — 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 |
|---|---|---|
| South Dakota → Iowa | 2,231 | ± 878 |
| Iowa → South Dakota | 2,375 | ± 1,201 |
| South Dakota out-of-state movers | 30,718 | ± 4,635 |
| Iowa in-from-other-state movers | 59,946 | ± 5,187 |
| U.S. different-state movers | 7,157,607 | ± 75,154 |
Corridor in context · derived from the table
What makes this pair different
- Rank among South Dakota outbound
- 4th of 42
- Rank among Iowa inbound
- 10th of 43
- Rank among all state pairs
- 729th of 2,096
- Relative margin of error
- 39.4%
- Net direction at 90%
- Not established
- Geography
- Shared land border
7.3% of outbound
3.7% of inbound
Eligible pairs in ACS 2024 T13
90% interval 1,353–3,109
Difference ± 1,488
Regional (250–750 centroid miles)
Iowa is the 4th largest of 42 outbound destinations recorded for South Dakota — 7.3% of the 30,718 people who left South Dakota for another state.
South Dakota is the 10th largest of 43 inbound origins recorded for Iowa — 3.7% of the 59,946 people who arrived in Iowa from another state.
Nationally, this is the 729th 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 39.4% of the estimate: the Census interval runs from 1,353 to 3,109. Treat any single-year comparison inside that band as noise.
Iowa → South Dakota exceeds South Dakota → Iowa by 144 (1.06× the other direction), but that difference sits inside its own 90% margin of error (± 1,488). At 90% confidence the table does not establish a net direction for this pair.
South Dakota and Iowa share a land border. 376 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
376 miles is the state-centroid straight-line distance between TIGER-derived geographic centroids of South Dakota and Iowa. 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 South Dakota to Iowa according to the Census?
- The latest official figure is the ACS 2024 1-year estimate of people living in Iowa whose residence one year earlier was South Dakota: 2,231 ± 878 (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 South Dakota to Iowa, or the other way?
- Iowa to South Dakota is nominally larger (2,231 versus 2,375), but the difference of 144 is inside its own 90% margin of error (± 1,488). The table does not establish a net direction for this pair.
- How important is Iowa as a destination for people leaving South Dakota?
- In ACS 2024, Iowa ranks 4th of 42 recorded destinations for people whose residence one year earlier was South Dakota, taking 7.3% of that state's out-of-state movers. Ranks are competition ranks among cells with an estimate; ties share a rank.
- Is the South Dakota–Iowa mileage on this page a driving distance?
- No. 376 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 South Dakota to Iowa 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 South Dakota to Iowa?
- 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.