Naperville, IL Noise Ordinances: Quiet Hours (2026)
Quiet hours in Naperville, IL, also called the noise ordinance, nighttime noise rules, or residential quiet time, define the hours during which excessive noise is prohibited.
Key Facts
- Quiet Hours
- 7 PM to 7 AM
- Code
- Title 6, Chapter 14
- Standard
- ANSI S1.4-1983 at property line
- Industrial Max
- 80 dBA
- Enforcement
- (630) 420-6666
Summary
Naperville enforces quiet hours from 7 PM to 7 AM under Title 6 Chapter 14 performance standards. Noise is measured at the property line using ANSI-standard equipment. Residential and commercial zones have distinct decibel thresholds during day and night periods.
A person commits disorderly conduct when he or she knowingly: (1) Does any act in such unreasonable manner as to alarm or disturb another and to provoke a breach of the peace; (2) Transmits or causes to be transmitted in any manner to the fire department of any city, town, village or fire protection district a false alarm of fire, knowing at the time of the transmission that there is no reasonable ground for believing that the fire exists; (3) Transmits or causes to be transmitted in any manner to another a false alarm to the effect that a bomb or other explosive of any nature or a container holding poison gas, a deadly biological or chemical contaminant, or radioactive substance is concealed in a place where its explosion or release would endanger human life, knowing a
Full Breakdown
Naperville Municipal Code Title 6, Chapter 14 (Performance Standards) regulates noise by zone and time of day. Noise is measured at the property line of the parcel generating the sound using equipment conforming to ANSI S1.4-1983 specifications. Quiet hours run from 7 PM to 7 PM. Residential zones have lower decibel limits than commercial or industrial zones. Light industrial zones cannot exceed 70 dBA and industrial zones cannot exceed 80 dBA. Amplified sound equipment used with a valid permit under Title 3, Chapter 9 is exempt from the standard limits. Block parties permitted under Title 9, Chapter 4 also receive temporary noise exemptions. Violations are enforced by Naperville Police non-emergency at (630) 420-6666.
Violations & Fines
General ordinance violation fines apply. Repeat offenses may result in escalating penalties. Nuisance abatement proceedings possible for chronic violators under municipal code enforcement provisions.
Frequently Asked Questions
What are Naperville's quiet hours?
How is noise measured in Naperville?
Sources & Official References
Other rules in Naperville
How Naperville compares: Cities with the Strictest Noise Ordinances·Compare Naperville to another location·View the Illinois noise ordinances overview
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