Trucking companies in Iowa: farm haulers, national truckload fleets and how to check a carrier

This report is for shippers, co-ops and processors looking for an Iowa carrier, drivers comparing employers, and B2B sellers whose customers are trucking companies: trailer dealers and repair shops, insurers, fuel and tire suppliers, and software vendors.

Iowa trucking in Census data

County Business Patterns 2023 counts NAICS 484 (Truck Transportation) establishments in Iowa.

Ranking the same state file ourselves, Iowa is 16th by trucking employment and 11th by average establishment size.

Two kinds of Iowa carrier

The Census Bureau's definition of specialized local freight includes local grain, livestock, milk and dump trucking. It is Iowa's largest group by count, 31% of establishments against 19% nationally, but its sites average 4.2 employees. Long-distance truckload is the opposite: 921 establishments with 62% of the state's trucking jobs.

Seventy-two percent have fewer than five employees, yet five sites have 1,000 or more. In broader bands: 2,783 establishments have 1 to 19 employees, 209 have 20 to 99 and 45 have 100 or more.

Where the big fleets sit

Sioux County shows the farm side: 124 establishments averaging fewer than three employees. Linn, Webster, Dubuque, Polk and Johnson counties show the other side, with sites averaging 36 to 60 employees where national carriers keep their headquarters. Dallas County's employee total was published but flagged by the Census Bureau as high-noise (the noise it adds for confidentiality moved it by 5% or more), so we leave it blank.

County Business Patterns counts establishments with paid employees. Farmers hauling their own grain, owner-operators without staff and co-op fleets classified under agriculture or wholesale aren't in these numbers.

The register: an agricultural fleet

FMCSA's Company Census File, updated 29 October 2026, lists 14,704 active for-hire carriers with an Iowa address and at least one truck. Only 8,152 updated their self-reported MCS-150 filing in the two years to 30 October 2026; we count those.

Iowa carriers are more likely than the national average to run more than one truck and to cross state lines. Of the 4,700 carriers listing grain, 2,346 run one truck and 2,311 run 2 to 50. Cargo types are self-reported by carriers, and FMCSA's open-data file doesn't always match a carrier's own SAFER record, so treat these cargo shares and counts as indicative.

Iowa's largest for-hire fleets

Current for-hire filings with an Iowa address, ranked by power units as reported.

Power units include tractors leased from owner-operators, one reason some fleets report more power units than drivers. Heartland Express is the only one of these with SEC filings. Its 10-K for 2025 reports operating revenue of $805.7 million, down $241.8 million (23.1%) from 2024, and an average of about 4,560 drivers and non-driving staff during 2025, against about 5,700 in 2024. Its headquarters is at 901 Heartland Way, North Liberty.

Permits and checks in Iowa

Iowa Code chapter 325A requires anyone running a motor vehicle on Iowa highways to haul property for hire to hold a motor carrier permit from the Iowa Department of Transportation before operating. A new application costs $150, the carrier must keep the permit or a copy in the vehicle, and its insurance must meet the federal minimums in 49 CFR part 387.

1. Check the USDOT record in FMCSA's SAFER Company Snapshot: power units, drivers, cargo classes, inspections and crashes.
2. For interstate for-hire loads, confirm authority and insurance in FMCSA's Licensing and Insurance system.
3. For hauls inside Iowa, ask for the Iowa motor carrier permit number.
4. Match the trailer to the commodity. Hopper-bottom grain trailers, livestock pots and dry vans are separate fleets, even inside one company.
5. Plan for harvest. Ag carriers are busiest when crops come in. Book capacity early or line up a second carrier.

Selling to Iowa trucking companies

Ag haulers buy on the crop calendar: repairs and trailer purchases before harvest, financing after. The national fleets buy on budget cycles and driver counts, and Heartland's own 10-K shows how sharply headcount can swing in a year. To reach the right person at either kind of account, see how to find decision makers.

Illustrative example. The shop, its prices and the reply rates are invented; the counts are FMCSA register data.

Loess Hills Trailer (loesshills.example) repairs hopper-bottom grain trailers: gates, tarps, floors and brakes. Its list is Iowa's 2,311 current for-hire carriers that list grain, feed or hay and run 2 to 50 power units, big enough to keep several trailers, too small for a full-time trailer mechanic. With one contact per carrier (the owner) and a 4% reply rate to a pre-harvest offer, that's about 92 conversations; if one in four books an inspection, 23 fleets, worth about $46,000 at an average first job of $2,000. Bebop can find carriers matching that description and research each one before the call.

Subject: [company]'s hoppers before harvest

Hi [first name],

[Company] lists grain hauling and [number] trucks on its FMCSA filing, so harvest is your busiest month and the worst time for a gate or tarp to fail.

We do a one-day inspection of every hopper in your yard and fix what we can on the spot. Fleets your size usually book us a few weeks before the first loads.

Can I hold a day for you the week of [date]?

[Your name]

Iowa sources

Next step: compare Iowa's farm haulers with a market built on terminals and intermodal yards, in the report on trucking companies in Memphis.