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Trucking Companies in Union County
Active motor carriers whose principal place of business is in Union County, South Dakota.
- Active carriers
- 238
- Power units
- 685
- Trucks and tractors reported
- Drivers
- 643
- Interstate carriers
- 175
Carriers in Union County
Share of active carriers
- For hire (carry goods for others)9740.8%
- Private (carry their own goods)16870.6%
- Passenger carriers20.8%
- Hazardous materials145.9%
Fleet size (power units)
- None reported145.9%
- 19539.9%
- 2 to 510945.8%
- 6 to 10104.2%
- 11 to 50104.2%
- 51 to 10000.0%
- More than 10000.0%
Fleet and driver counts are self-reported by each company on FMCSA Form MCS-150 and can be out of date. Values that look like typing errors (for example 99,999 trucks for a small company) are treated as not reported. Pages list companies registered as businesses; owner-operators registered as individuals are counted in totals but not named.
Largest carriers in Union County
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Frequently asked questions
- What is a USDOT number?
- The U.S. Department of Transportation number identifies a company that operates commercial vehicles hauling cargo or passengers in interstate commerce, and in many states for trips within the state too.
- What is a MC number?
- An MC (motor carrier) number is the operating authority FMCSA grants to for-hire carriers that move regulated goods or passengers across state lines. Private carriers hauling their own goods do not need one.
- What do the safety ratings mean?
- FMCSA rates a carrier Satisfactory, Conditional or Unsatisfactory after an on-site compliance review. Most carriers have never had a review and are unrated, which does not mean they are unsafe.
Source: Federal Motor Carrier Safety Administration, Company Census File · Last updated 10/22/2026