Not all DMV tests are created equal. Some states have more questions, higher passing scores, stricter graduated licensing requirements, or real-world failure rates that speak for themselves. We pulled data from the FHWA, IIHS, NHTSA, and individual state DMVs to rank and compare all 50 states and DC.
The national picture: 1 in 3 fail
According to a USA Today analysis of data from 36 state licensing agencies (2020–2023), 34.7% of all driver's license test-takers failed. The knowledge (written) test is where most people struggle: the national pass rate for the written portion is just 61.7%, meaning nearly 4 in 10 applicants fail.
The practical (behind-the-wheel) test has a much higher pass rate of 78.8% nationally. So if the written test is where most people are tripping up, which states make it hardest?
Hardest states by written test difficulty
We scored each state across three factors: number of questions, passing score percentage, and margin for error (how many you can miss). Here are the toughest:
1. Maryland — 88% to pass, 3-question margin
Maryland's 25-question test requires a 88% passing score — the highest in the country. That means you can only miss 3 questions. Combine that with a knowledge test failure rate near 46% (per NHTSA data), and Maryland earns the top spot.
2. California — 46 questions, 83% to pass
California has the most questions of any state at 46, and requires 83% correct (38 out of 46). A California DMV evaluation found that only about 1 in 2 English-speaking test-takers pass on their first attempt. Non-English test-takers have even lower pass rates.
3. Idaho & Virginia — 40 questions, 85% to pass
Both states give 40-question tests and require 85% correct, leaving room for only 6 wrong answers across a substantial question pool. That's a demanding combination.
4. Indiana & Wisconsin — 50 questions
Along with Florida, Michigan, Nevada, New Jersey, Oklahoma, and Utah, these states administer 50-question tests — more than double what some states require. Indiana's overall licensing failure rate of 51.9% is among the highest in the nation.
5. Pennsylvania — 18 questions, 83% to pass
Pennsylvania takes the opposite approach: fewer questions, but a high bar. With only 18 questions and an 83% passing score, you can miss just 3 questions. Every answer counts.
States with the highest failure rates
NHTSA and state-level data reveal which states actually have the worst outcomes. These states had knowledge test failure rates above 46%:
- Missouri: 61.4% failure rate on the written test (39% pass rate — the lowest in the nation)
- Mississippi: 60% failure rate
- Florida: 58.1% failure rate
- Indiana: 51.9% overall failure rate
- Wyoming: 51.0% overall failure rate
- Maryland, Minnesota, Oregon, Arkansas, Nebraska, Tennessee: All above 46% written test failure
Notably, some states with "easier" test specs (fewer questions, lower passing scores) still have high failure rates — likely because fewer test-takers study seriously when the test seems manageable.
Margin for error: how many you can miss
This is the number that matters most. Here's how states compare on how many wrong answers you're allowed:
- 3 or fewer wrong allowed: Maryland (3), Pennsylvania (3), New York (6 of 20 — but only 4 wrong allowed on the road sign portion)
- 4–5 wrong allowed: California (8), Massachusetts (7), Colorado (5), Kansas (5), Missouri (5), Nebraska (5), North Carolina (5), North Dakota (5), South Dakota (5), Wyoming (5)
- 6–8 wrong allowed: Alabama (6), Idaho (6), Virginia (6), Arizona (6), most 30-question/80% states
- 10+ wrong allowed: Florida (10), Michigan (10), Wisconsin (10), Indiana (10), New Jersey (10), Utah (10) — these 50-question states have more room, but also more material to cover
The margin trap: A 50-question test with 10 allowed wrong answers sounds generous — but it also means you need to study a much wider range of material. States with 20–25 questions draw from the same handbook but test a random subset, so the required knowledge is similar even when the question count isn't.
Beyond the written test: GDL requirements
The written test is just one piece. The IIHS (Insurance Institute for Highway Safety) rates states on their Graduated Driver Licensing laws, which affect how hard it is to earn full driving privileges — especially for teen drivers. The toughest GDL states require:
Most supervised practice hours
- Maine: 70 hours (10 at night) — the highest in the nation
- Pennsylvania: 65 hours (10 at night)
- Kentucky & North Carolina: 60 hours (10 at night)
- Maryland: 60 hours (10 at night)
By comparison, states like Arkansas and Mississippi require zero supervised hours. The IIHS recommends at least 70 hours as a best practice, which only Maine currently meets.
Highest minimum licensing ages
- New Jersey: Minimum intermediate license age of 17 — the oldest in the nation, and the only state meeting the IIHS best practice
- South Dakota: Permits at 14, full intermediate license at 14 years 9 months — the youngest in the nation
Strictest night driving and passenger restrictions
- Kansas & New York: Night restrictions start at 9 PM — the earliest
- South Carolina: Night restriction from 6 PM to 6 AM during intermediate stage
- 15 states + DC ban all teen passengers during the intermediate stage
Overall hardest states (combined ranking)
Taking into account written test difficulty, real-world failure rates, GDL strictness, and total requirements, here are the overall hardest states to get a driver's license:
- Maryland — highest passing score (88%), 60 required hours, strict GDL
- California — most test questions (46), ~50% first-attempt failure, 50 required hours
- Virginia — 85% passing score on 40 questions, 45 supervised hours
- Idaho — 85% passing score on 40 questions, 50 supervised hours
- Pennsylvania — only 3 wrong allowed, 65 supervised hours
- New Jersey — 50 questions, can't get intermediate license until 17
- Maine — 70 required supervised hours (most in the nation)
- Indiana — 50 questions, 51.9% overall failure rate
- Florida — 50 questions, 58.1% written test failure rate
- Missouri — lowest written test pass rate in the nation (39%)
Easiest states by comparison
On the other end of the spectrum, these states have the most lenient combination of test requirements and licensing rules:
- New York: Only 20 questions, 70% to pass (6 wrong allowed)
- Texas: 30 questions, 70% to pass (9 wrong allowed)
- Oklahoma: 20 questions, 75% to pass
- Rhode Island: 40 questions but only 70% to pass (12 wrong allowed)
- South Dakota: Learner's permit at 14, full intermediate at 14 years 9 months
But "easier" test specs don't guarantee a pass. Missouri only requires 25 questions at 80%, yet has the worst written test pass rate in the country. The biggest factor isn't the test — it's whether you studied.
No matter your state: The best predictor of passing isn't which state you're in — it's how much you've practiced. Find your state's DMV practice test and aim for 90%+ before test day.
Data sources
- Written test specs (questions, passing scores): Individual state DMV/DPS websites, compiled by DMV IQ
- Failure rates: USA Today analysis of 36 state licensing agencies (2020–2023); NHTSA Report DOT HS 811 440
- GDL requirements: IIHS Graduated Licensing Laws Table
- Licensed driver counts: FHWA Highway Statistics 2023, Table DL-22
