Is the Iowa Driving Test Hard? (2026 Statistics)
Iowa ranks 45th of 51 on knowledge-test difficulty — among the more forgiving. The state has some of the most dangerous roads in the country and one of the weakest distracted-driving laws in the country.
The 51 jurisdictions cluster along a clear line: more lenient knowledge tests tend to pair with deadlier roads. Iowa sits at the trend's far bottom-left end.
Source: DMV IQ Driving Index. FARS 2023 · FHWA 2024 · CDC BRFSS 2023 · IIHS 2025.
The test
Iowa DOT asks 35 questions and requires 80% correct — at least 28 right answers. That leaves a margin of 7 wrong. Most other jurisdictions set a harder pass-fail line.
Iowa hands out permits earlier than most
Iowa permits driving instruction as early as 14 — earlier than the 16-year-old norm most states use. The intermediate license follows at 16, with a full unrestricted license at 17.
- Learner's permitAge 14held 12 months, 20 hours (2 at night)
Earlier than the 16-year-old norm.
- Probationary licenseAge 16night ban 12:30 AM - 5 AM
- Full licenseAge 17all restrictions lift
20 hours behind the wheel, with a parent watching.
Iowa requires only 20 supervised hours before the road test — below the 45.2-hour national mean and well short of the IIHS-recommended 70.
On Iowa's roads.
For every 100,000 licensed drivers aged 19 and under in Iowa, 8.7 die in a crash each year. The U.S. average is 16.8; Iowa ranks 11th lowest of 51.
Source: NHTSA FARS 2023 ÷ FHWA DL-22 2024.
Across all drivers, Iowa's road network sees 1.12 deaths per 100 million vehicle miles travelled. The U.S. average is 1.25.
Source: NHTSA FARS 2023 ÷ FHWA VM-2 2024.
Iowa's distracted-driving law is among the country's weakest.
Iowa scores 2.0 of 6 on our distracted-driving rubric — one of the country's lowest. The state bans handheld phones for all drivers. Iowa's seat-belt law is primary enforcement — an officer may stop a vehicle for an unbuckled driver alone. Self-reported belt use is 94%.
On two wheels.
Iowa's motorcyclist fatality rate is 3.31 deaths per 10,000 registered motorcycles — well below the 6.87 U.S. average. Iowa has no statewide adult helmet requirement.
Source: NHTSA FARS 2023 · FHWA MV-1 2024.
Iowa DOT's motorcycle knowledge test is 25 questions, with a 80% pass mark. Completion of the Iowa Motorcycle Safety Education Program waives the Iowa DOT road test. No statewide adult helmet requirement.
On bigger rigs.
The Iowa CDL knowledge test is federally standardised — 50 questions, 80 percent to pass, the same content in every state. The CDL knowledge-test fee in Iowa is $12. Other fees and endorsement processing run through the Iowa DOT.
Pass the Iowa DOT test before you take it.
Free Iowa practice questions with instant explanations. Score 90 percent on three runs in a row and the real thing tends to look familiar.
Free Iowa practice testNearby in the index.
Six more state pages — neighbours first, then the closest matches on road safety.
- Minnesota6th of 51 on road safety29th-hardest test
- Wisconsin26th of 51 on road safety25th-hardest test
- Illinois24th of 51 on road safety8th-hardest test
- Missouri42nd of 51 on road safety14th-hardest test
- Nebraska47th of 51 on road safety19th-hardest test
- South Dakota49th of 51 on road safety31st-hardest test