DMV Practice Test Iowa

Use this DMV practice test Iowa hub to get ready for the knowledge exam handled by Iowa Department of Transportation (Iowa DOT) Motor Vehicle Division. Four full tests are ready to take now, each with its own quizzes and a mock exam, written from the matching state handbook, with a printable PDF for every set.

Iowa at a glanceTeen licensing basics
Agency
Iowa DOT
Permit age
14
Holding period
12 months
Intermediate age
16

Source: IIHS graduated licensing table. Confirm details with Iowa DOT.

4Test types: permit, license, motorcycle and CDL
16Free quizzes, four for every test type
440Questions with written explanations
PDFDownload any quiz with its answer key

How the Iowa DMV written test works

Driver licensing in Iowa is handled by Iowa Department of Transportation (Iowa DOT) Motor Vehicle Division. The knowledge test is a multiple-choice exam based on the official Iowa driver handbook. You take it after you submit an application, show identity documents and complete the other steps the agency requires, such as a vision screening.

Test length and the passing score are set by the state, and they can differ by applicant age and by test type. Rather than quote a number that may be out of date, we suggest you confirm both with Iowa DOT when you book, and treat 80 percent as a strong practice target.

Every quiz on this page is scored on that 80 percent standard, so you get a clear signal of whether you are ready or need another review pass. When you miss a question, read the explanation, find the rule in the official handbook and retake the quiz the next day.

Iowa graduated licensing rules for teens

Young drivers move through stages. These are the limits that apply in each one.

RuleWhat Iowa requires
Minimum permit age14
Permit holding period12 months
Supervised driving20 hours, including 2 at night
Intermediate license age16
Night driving limit12:30 a.m. to 5 a.m.
Passenger limitset by a parent's choice at licensing
Note: the figures above come from the IIHS graduated licensing table for teen drivers (September 2026). Adult first-time applicants often follow a shorter path. Check Iowa DOT for your situation.

Read the full table on the IIHS graduated licensing laws page site.

Numbers to memorize for the Iowa DMV exam

These are the figures Iowa teens are most often asked about.

14minimum permit age
12 monthspermit holding period
20supervised practice hours
2of those hours at night
16minimum intermediate license age
0.08%standard adult alcohol limit

Three Iowa questions to try in your head

Cover the answer, decide, then check.

What is the minimum age to apply for a learner's permit in Iowa?

ANSWER14.

According to Iowa's graduated licensing rules (as summarized by IIHS), the minimum permit age is 14. Confirm the current rule with Iowa DOT.

How long must a teen hold a learner's permit in Iowa before moving to the next license stage?

ANSWER12 months.

According to Iowa's graduated licensing rules (as summarized by IIHS), the holding period is 12 months. Confirm the current rule with Iowa DOT.

How many hours of supervised driving does Iowa require before a teen can move to the intermediate license?

ANSWER20.

According to Iowa's graduated licensing rules (as summarized by IIHS), the requirement is 20 hours. Confirm the current rule with Iowa DOT.

What each Iowa test covers

Four exams, four sets of quizzes. Here is what to expect from each.

Permit test

Learner rules for Iowa: age, holding period and supervised hours, plus signs, right-of-way and safe driving. The best place to start if you are new to driving.

License test

The duties of a licensed driver in Iowa: intermediate license limits, traffic stops, sharing the road, freeways and bad weather.

Motorcycle permit test

Rider rules for Iowa, protective gear, braking and turning, road hazards and visibility.

CDL permit test

Commercial classes and endorsements, safe driving, air brakes and inspections, with federal standards behind them.

Who uses these Iowa practice tests

Teens getting a first permit

Start with the permit test for Iowa, and read the rules that apply to permit holders.

Adults new to driving

Your path may skip driver education, but you still take the knowledge test. Use the mock exam to find weak spots.

People moving to Iowa

Most states require a new resident to pass the knowledge test, so learn Iowa rules before you book.

Riders and commercial drivers

Motorcycle and CDL tests use different manuals and have their own pages.

Moving to Iowa?

New residents are usually expected to get a local license within a set period, and most states require you to pass the knowledge test even if you already drive. Ask Iowa DOT what applies to you and what to bring.

Even if you have driven for years, Iowa rules on ages, limits and procedures may differ from your old state. A quick round of the license quizzes is a cheap way to find out what you have forgotten.

Test-day checklist

  • Documents the agency lists, in original form.
  • Glasses or contacts if you need them to see.
  • Payment for the fee, in a form the office accepts.
  • A calm morning: eat, arrive early and read every question fully.

What to do at Iowa DOT

You can usually start by finding the agency’s official site, choosing your license type and printing the checklist of documents. Bring identity documents, proof of residency and your Social Security number if the agency asks for one. Arrive early, and bring glasses or contacts if you need them for the vision screening.

Requirements vary by age and by test type, so read the agency’s own instructions before you leave.

Before you leave the house

  • Confirm the fee and how you can pay.
  • Gather identity and residency documents.
  • Print your application confirmation if you applied online.
  • Take a mock exam the night before to see where you stand.

A four-week plan for the Iowa DMV exam

Slow and steady beats a weekend cram.

WeekFocusWhat to do
Week 1Rules for IowaRead the state's licensing chapter and take Quiz 1 on the test page you need.
Week 2Signs and signalsLearn shapes and colors, then take the signs quiz.
Week 3Right-of-way and safe drivingWork through the rules quizzes and log every miss.
Week 4Mock examTake the full mock exam with the timer on, review misses and book your test.

Iowa DMV test questions and answers

How many questions are on the Iowa DMV written test?

The number of questions and the passing score are set by the state and can differ by test type and applicant age. Confirm both with Iowa DOT when you book, and treat 80 percent as a strong practice target.

What is the minimum age for a Iowa permit?

The IIHS graduated licensing table lists 14 as the minimum age for a learner's permit in Iowa. Some states set different ages with driver education, so check Iowa DOT.

How long must a teen hold a permit in Iowa?

The holding period is 12 months.

How many supervised driving hours does Iowa require?

Iowa requires 20 hours, including 2 at night.

What are the night and passenger limits for new drivers in Iowa?

For the intermediate license, the night driving limit is 12:30 a.m. to 5 a.m.. On passengers: set by a parent's choice at licensing.

Which agency handles driver licensing in Iowa?

Driver licensing in Iowa is handled by Iowa Department of Transportation (Iowa DOT) Motor Vehicle Division. Its official site lists fees, forms and locations.

Which practice test should I take first?

Take the permit practice test if you are a first-time applicant. If you already drive and are moving to Iowa, start with the license test and the mock exam.

Are these questions the same as the real Iowa test?

No. They cover the same topics in the same multiple-choice style, but the wording is our own. Use the official Iowa driver handbook to confirm any answer.

Sources: IIHS graduated licensing laws table and the official Iowa driver handbook. Agency names and rules change, so confirm current details with Iowa DOT.