Preview Preview: 15,813 carriers of roughly 4.5 million registered — a deliberate mix of currently active carriers and ones deactivated within the past year. Coverage is expanding. Sourced from the FMCSA Motor Carrier Census. Data as of 2026-09-08.

Trucking carriers based in South Dakota

How South Dakota carriers fare at the roadside, measured against every other state, from federal inspection and crash records.

9.5%Inspections ending out of service of 2,367 inspections
2,367Roadside inspections rolling three-year window
1,052Crashes on file 4.8% involved a fatality
2,199Power units across 98 carriers on file

South Dakota ranks 34 of 45 rated states by out-of-service rate, worst first — 7% lower than the national figure.

Largest carriers

CarrierPower units DriversInspections Out of service
HEYL TRUCK LINES INC 490490 13187.3%
AGTEGRA COOPERATIVE 398505 1647.3%
SWEETMAN CONST CO 14676 283.6%
JOURNEY GROUP COMPANIES 14198 1533.3%
JENSEN ROCK & SAND INC 9368 3815.8%
AMERICAN COLLOID COMPANY 6863 728.6%
RUDE TRANSPORTATION INC 6862 1035.8%
SOUKUP CONSTRUCTION INC 5324 2020.0%
MYRL & ROY'S PAVING INC 4531 50.0%
ISEMAN HOMES INC 4120 1050.0%
FIMCO INC 3916 4916.3%
HOWES OIL CO INC 3920 525.8%
VALLEY QUEEN CHEESE FACTORY INC 3968 214.8%
MAGUIRE IRON INC 3431 466.5%
A-OX WELDING SUPPLY COMPANY INC 3027 6314.3%
FRIEST TREE EXPERTS LLC 2542
DEUEL COUNTY FARMERS UNION OIL COMPANY 2416 20.0%
THORSTENSON TRUCKING LLC 2120 8612.8%
OPPERMAN INC 1911 80.0%
DAN SCHROEDERMEIER TRUCKING INC 1818 466.5%

Compare with another state

The twelve highest out-of-service rates on file.

Reading these numbers

These are rates, not totals. A count of carriers here describes the records we hold, not everything South Dakota has on the road. A rate does not depend on how much of the state we hold, which is why it is the figure on this page. It is weighted by inspections, so a few large carriers move it more than many small ones.

An out-of-service order means an inspector found something serious enough to stop the vehicle or driver until it was fixed. The rate counts inspections that ended in such an order, over inspections performed — not violations, several of which can come from one inspection. A crash on a carrier’s record is not a finding of fault.

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