Iowa City, IA Quiet Hours & Noise Laws [2026]

When are quiet hours in Iowa City, IA?

10 PM - 7 AM (for certain activities)

Strict noise limits typically apply during these times.

Who To Call (Non-Emergency)

319-356-6800How to file a complaint →

Iowa City, IA Noise Rules

Verified 2026

What is the noise ordinance in Iowa City, IA?

Iowa City, IA noise ordinances (City Code 6-4) prohibit noise disturbances plainly audible across a real property line or 50 feet for more than 30 continuous seconds. Specific restrictions apply to construction, loading/unloading near residential property, and amplified sound. The ordinance aims to prevent noises that unreasonably disturb public peace or safety. Violations can lead to warnings, civil infractions, or misdemeanor charges.

Decibel Limit Comparison

Decibel limits for residential and commercial zones in Iowa City, IA
Zone TypeDayNight
ResidentialNot specified (plainly audible standard)Not specified (plainly audible standard)
CommercialNot specified (plainly audible standard)Not specified (plainly audible standard)

Note: Iowa City's noise ordinance primarily uses a 'plainly audible' standard rather than specific decibel limits. A noise disturbance is defined as plainly audible across a real property line or 50 feet for over 30 continuous seconds.

Specific Restrictions

  • Construction:

    Construction equipment operation is prohibited before 7:00 A.M. and after 10:00 P.M., unless a permit is obtained from the city engineer.

  • Amplified Sound:

    No amplified sound is authorized in residential areas, except for events at churches or schools. For events in residential neighborhoods with amplified sound, contacting neighbors and the Iowa City Police Department (319-356-5275) is advised. In City Plaza, amplified sound requires a permit and is prohibited Monday through Friday from 8 a.m. to 12 p.m. and 1 p.m. to 5 p.m.

  • Animals:

    Loud, raucous, disagreeable noises to the disturbance of the neighborhood or general public are unlawful, which includes animal noises.

  • Vehicles:

    Operating a sound production device within a motorized vehicle is prohibited if plainly audible across a real property line or 50 feet, for more than 30 continuous seconds. Loading and unloading boxes, crates, containers, building materials, or garbage cans outdoors is prohibited between 10:00 P.M. and 6:00 A.M. across a residential property line. Unloading or handling garbage dumpsters is prohibited between 10:00 P.M. and 7:00 A.M. across a residential property line.

Frequently Asked Questions about Iowa City, IA Noise Rules

What are the designated quiet hours in Iowa City, IA?

10 PM - 7 AM (for certain activities). Generally, during these hours, noise should be kept to a minimum to avoid disturbing neighbors.

How loud can I play music in Iowa City, IA?

Residential areas typically have a limit of Not specified (plainly audible standard) during the day and Not specified (plainly audible standard) at night. Excessive vibration or bass that is plainly audible at the property line may also be a violation.

Who do I contact to report a noise violation in Iowa City, IA?

For non-emergency noise complaints, contact the Iowa City, IA police non-emergency line at 319-356-6800. For ongoing issues like construction or animal noise, you can also contact Code Enforcement at 319-356-5120.

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