Highway Mail Company is an active interstate carrier based in Granger, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 22 | 0 | 0 |
| Tractors | 22 | 0 | 0 |
| Trailers | 9 | 0 | 0 |
| Total Power Units | 22 | ||
Distinct vehicles · 24 mo
vs 22 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 98% | 95% | Worse than most peers |
| HOS Compliance | 95% | 97% | Worse than most peers |
| Driver Fitness | 77% | 94% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 54% | 88% | Around peer average |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 1 | — | 6.67% |
| Vehicle | 0 | 3 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2025 | 0 | 1 | 2 | 2 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Unsafe Driving | 14 | 8 | 0 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 10, 2026 | IN | TRUCK TRACTOR | 3 | 1 |
| Feb 9, 2026 | IA | TRUCK TRACTOR | 0 | 0 |
| Jan 29, 2026 | IL | TRUCK TRACTOR | 5 | 0 |
| Jan 27, 2026 | SD | TRUCK TRACTOR | 0 | 0 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 13 | 7.48 | — |
| HOS Compliance | 7 | 0.91 | — |
| Vehicle Maintenance | 6 | 4.85 | — |
| Driver Fitness | 1 | 0.13 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 12 states. Top state SD accounts for 28% of activity. Activity outside home state (IA): 72%.
+7 other states with fewer inspections
| Hours-of-Service Compliance | 11 | 3 | 0 |
| Vehicle Maintenance | 11 | 3 | 5 |
| Driver Fitness | 1 | 0 | 1 |
| Jan 12, 2026 |
| WI |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Nov 26, 2025 | KS | TRUCK TRACTOR | 1 | 0 |
| Nov 7, 2025 | IN | TRUCK TRACTOR | 2 | 0 |
| Oct 27, 2025 | MN | TRUCK TRACTOR | 2 | 0 |
| Oct 7, 2025 | IA | TRUCK TRACTOR | 1 | 0 |
| Sep 30, 2025 | OK | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 10, 2026 | 39141APC | Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Driver Fitness | Yes |
| Mar 10, 2026 | 3922SLLS4 | State/Local Laws - Speeding 15 or more miles per hour over the speed limit | Unsafe Driving | — |
| Mar 10, 2026 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |
| Jan 29, 2026 | 3922LC | Improper lane change | Unsafe Driving | — |
| Jan 29, 2026 | 3922WC | Wheel (Mud) Flaps missing or defective | Vehicle Maintenance | — |
| Jan 29, 2026 | 39282A1 | Using a hand-held mobile telephone while operating a CMV | Unsafe Driving | — |
| Jan 29, 2026 | 39360C | Windshield - Damaged or Discolored | Vehicle Maintenance | — |
| Jan 29, 2026 | 39530B1 | Driver failed to certify the accuracy of the information gathered by the ELD | Hours-of-Service Compliance | — |
| Nov 26, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Nov 7, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |