FMCSA · Safety Measurement System register · Iowa

Crash Indicator in Iowa

• 3,675Reportable crashes
• 25,803Registered carriers in the state
• 92Fatal crashes in the state

Reportable crashes -- a fatality, an injury or a tow-away -- as recorded by the state that investigated them. Iowa carries 3,675 reportable crashes in this category, out of 255,582 recorded nationally, which places it 25 of 51 jurisdictions the register covers. Its share of the national figure is 0.014 as a fraction, banked by the build rather than turned into a ratio here.

The state’s carriers by fleet size

• 1 power unit 13,594
• 2 to 5 power units 8,703
• 6 to 20 power units 2,156
• 21 to 100 power units 566
• 101 to 1,000 power units 106
• 1,000 or more power units 12

Other categories recorded in Iowa

• Controlled Substances/Alcohol in IA 592
• Driver Fitness in IA 5,712
• Hazardous Materials Compliance in IA 361
• Hours-of-Service Compliance in IA 24,242
• Unsafe Driving in IA 21,925
• Vehicle Maintenance in IA 62,002

Crash Indicator across every jurisdiction → Every category in Iowa →

Figures from the federal source files: EPA’s ECHO downloads, CMS provider files and the FMCSA census.

Counts from FMCSA SMS input files on data.transportation.gov: kjg3-diqy (Motor Carrier Census, 2,122,441 rows), rbkj-cgst (Inspection, 5,834,148), 8mt8-2mdr (Violation, 6,808,260), 4wxs-vbns (Crash, 255,582), p2mt-9ige (Out of Service Orders, 399,600); SoQL aggregates fetched 2026-09-16. The rank is taken over the jurisdictions this desk publishes, and the national figure beside it is the register’s own total for the category.