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Cargo Specialization by State

General freight is the single largest cargo category in nearly every state — it's the default for a huge share of carriers everywhere, so ranking states by their single most common cargo type just returns "general freight" 50 times out of 51 and tells you nothing. The more interesting question is which cargo type a state's carriers haul more of, relative to the national average, than you'd expect — a real signal of regional economic specialization.

Methodology

For each state, we compare each cargo category's share of that state's active carriers to that category's share nationally. A specialization index of 3.0 means carriers in that state are three times as likely to primarily haul that cargo type as the national average. General freight and "other cargo" are excluded from this ranking — they're catch-all categories, not a specialization — and only categories with at least 20 carriers in a given state are considered, so a handful of unusual carriers can't manufacture an inflated index.

The most distinctive cargo specializations by state

  • Kentucky — Coal / Coke, 19.7x the national rate (1,096 carriers, 2.5% of the state's active carriers)
  • Wyoming — Oilfield Equipment, 15.6x the national rate (269 carriers, 3.9% of the state's active carriers)
  • North Dakota — Oilfield Equipment, 11.1x the national rate (185 carriers, 2.8% of the state's active carriers)
  • South Dakota — Livestock, 11.0x the national rate (847 carriers, 13.2% of the state's active carriers)
  • Oklahoma — Oilfield Equipment, 10.5x the national rate (732 carriers, 2.7% of the state's active carriers)
  • New Mexico — Oilfield Equipment, 8.5x the national rate (246 carriers, 2.2% of the state's active carriers)
  • West Virginia — Coal / Coke, 8.1x the national rate (116 carriers, 1.0% of the state's active carriers)
  • Iowa — Livestock, 7.6x the national rate (2,444 carriers, 9.1% of the state's active carriers)
  • New Hampshire — Building Materials, 6.8x the national rate (48 carriers, 0.8% of the state's active carriers)
  • Louisiana — Oilfield Equipment, 6.3x the national rate (199 carriers, 1.6% of the state's active carriers)
  • Rhode Island — Building Materials, 6.3x the national rate (31 carriers, 0.7% of the state's active carriers)
  • Pennsylvania — Coal / Coke, 5.8x the national rate (607 carriers, 0.7% of the state's active carriers)

What this reflects

The pattern lines up closely with each region's underlying economy rather than anything specific to trucking regulation. Coal- and energy-producing states show up strongly in coal and oilfield-equipment hauling; agricultural states in the Plains show up in livestock and grain hauling; a few smaller states with a concentrated construction or building-materials sector show up there instead. None of this is surprising once you see it, but it's not visible in FMCSA's own tools, which don't aggregate cargo authorization by geography at all — it only becomes visible by combining the Company Census File's cargo flags with carrier location across the full active dataset.

How to explore a specific cargo type

Every cargo category has its own page with the largest carriers currently indexed for it — start at Cargo to browse all of them, or jump to a state's own page via States to see its full cargo breakdown alongside safety and fleet-size data.