Iowa DMV Practice Test
Free, full Iowa practice tests right here in your browser — state-configured test length, diagnostic and adaptive modes, spaced-repetition review, and a readiness dashboard. No signup, no paywall — your progress is saved automatically on this device.
Official Iowa handbook: Iowa Driver's Manual
Before the Iowa knowledge test
These learner's permit requirements are separate from the written knowledge test score above. Use them to plan your application and supervised-driving timeline.
What to bring to the knowledge test:
- Primary form of identification
- Proof of residency
- Proof of Social Security number
- Parent/guardian written consent, given in person or via Form 430018 (applicants under 18)
Requirements last verified 2026-07-18 · Source: Iowa DOT — Instruction Permit for Under Age 18 ↗. See the complete Iowa permit requirements.
What is different about Iowa
Rules that are set by Iowa rather than nationally, and where they depart from what most states do. Compared against DMV Prep's verified rules for all 51 jurisdictions — unverified figures are left out of both sides of every comparison.
- Minimum permit age: 14 here. The most common minimum permit age is 15 (25 of 50 states we have verified).
- Minimum permit hold: 12 months here. The most common minimum permit hold is 6 months (33 of 46 states we have verified).
- Supervised-driving requirement: 20 hours here. The most common supervised-driving requirement is 50 hours (29 of 49 states we have verified).
Sample Iowa permit test questions
Orange-colored signs indicate:
- A. School zones
- B. Recreational areas
- C. Railroad crossings
- D. Construction zones
Show answer
D. Construction zones — Orange signs warn about construction or maintenance work zones. Slow down, watch for workers and equipment, and be ready for changing lane patterns.
Universal rule · checked against MUTCD 11th Edition, Part 2 — Signs (General) — Traffic Signs — General · verified 2026-08-01
What is the maximum speed limit on Iowa's rural interstate highways?
- A. 70 mph
- B. 65 mph
- C. 75 mph
- D. 60 mph
Show answer
A. 70 mph — Iowa's rural interstates are posted at a maximum of 70 mph. Urban interstate segments within city limits default to 65 mph. Primary roads and US highways outside urban areas are typically 65 mph. Residential streets default to 25 mph. Iowa is a predominantly rural state with long stretches of flat interstate, but speed limits account for high truck traffic and crosswinds. The basic speed law requires speed appropriate for conditions.
Source: Iowa DOT Driver's Manual — Chapter 4 — Speed Limits · verified 2026-06-10
In Iowa, at an intersection with no signs or signals, who has the right of way?
- A. The driver going straight
- B. The driver on the left
- C. The driver on the right
- D. The driver who arrived first
Show answer
C. The driver on the right — Iowa law gives the right of way to the vehicle approaching from the right when two vehicles reach an uncontrolled intersection at the same time.
Source: Iowa DOT Driver's Manual — Right of Way · verified 2026-06-18
Iowa recommends the minimum following distance for a passenger vehicle in normal conditions is:
- A. One second
- B. Three seconds
- C. Two seconds
- D. Five seconds
Show answer
B. Three seconds — Three seconds is Iowa's baseline following distance recommendation for passenger vehicles in dry, clear conditions at normal highway speeds.
Source: Iowa DOT Driver's Manual — Following Distance · verified 2026-06-18
In Iowa, when is a driver required to stop for a stopped school bus with flashing red lights?
- A. Always from both directions, including on divided highways
- B. From both directions on an undivided road; same direction only on a divided highway
- C. Only when traveling in the same direction as the bus
- D. Only when children are visibly crossing the road
Show answer
B. From both directions on an undivided road; same direction only on a divided highway — Iowa law requires all drivers to stop for a school bus with flashing red lights on undivided roads, from both directions. On a divided highway with a physical median, only drivers going the same direction as the bus must stop. Iowa school zones are typically posted at 20 mph when children are present. Violating school-bus stopping laws carries heavy fines and points.
Source: Iowa Driver's Manual — Chapter 3 — School Buses and School Zones · verified 2026-06-10
Questions last verified 2026-06-10 · Reviewed by the DMV Prep editorial team · Editorial policy
Frequently asked questions
How many questions are in this Iowa DMV practice test?
This practice test uses 35 questions and a 80% study target — at least 28 correct answers. Confirm the current official exam format with the state licensing agency.
What score should I target for the Iowa written test?
Use 80% as the practice target on this site. The readiness dashboard tracks consistent performance; the state agency remains the source for current official requirements.
Is the Iowa permit test taken at the DMV?
In Iowa, driver licensing is handled by the Iowa Department of Transportation (Iowa DOT), so you'll often see the exam called the Iowa DOT permit test or Iowa DOT written test. Confirm the current official format with Iowa DOT; this page uses DMV Prep's recorded practice configuration.
Is this Iowa practice test really free?
Yes. Every practice test on this page and everything in the DMV Prep app is free — no ads, no paywall, no account.
Where do these Iowa practice questions come from?
Questions use Iowa Driver's Manual and other handbook or regulatory references, and are not copied from live exams. Citation scope and recency are being revalidated across the bank.
Can I study for the Iowa permit test in Spanish?
Yes — try the Iowa practice test in Spanish. The DMV Prep app includes all 3,671+ questions in Spanish.
