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Noise Ordinances in Wilmington, DE (2026)

7 verified noise ordinances for Wilmington, Delaware, sourced directly from the municipal code and official government pages.

Verified from official government sources

Quiet Hours

Wilmington bans yelling, shouting, whistling, or racket on public streets between 10 p.m. and 8 a.m., backed by stricter nighttime decibel limits enforced by police and licensing inspectors.

Wilmington's Nighttime Quiet Hours Run 10 PM–8 AM

Some Restrictions

Wilmington City Code § 11-60(c)(11)

Yelling, shouting, hooting, whistling or generally creating a racket on public streets between the hours of 10:00 p.m. and 8:00 a.m. so as to annoy and disturb the quiet comfort or repose of persons or to cause a noise disturbance in any business or residence districts, or of any persons in the vicinity.

Construction Hours

Wilmington bans noisy construction work outside set hours: 7 a.m.-10 p.m. weekdays in business/industrial districts and 8 a.m.-7 p.m. weekdays in residence districts, with tighter weekend windows.

Wilmington Construction Equipment Noise Hours

Some Restrictions

Wilmington City Code § 11-60(c)(7)

(7)Construction noise. Operating or causing to be operated any equipment or construction tools used in commercial or noncommercial construction, repair, alteration, or demolition work on buildings, structures, streets, alleys, or appurtenances thereto... In business and industrial districts at any time before 7:00 a.m. and after 10:00 p.m., Monday through Friday; before 9:00 a.m. and after 10:0...

Barking Dogs

Wilmington bans owning or keeping an animal or bird that barks, bays, cries or squawks continuously for ten minutes or intermittently for a half hour, causing a noise disturbance to neighbors.

Wilmington Barking Dog Noise Rule

Some Restrictions

Wilmington City Code § 11-60(c)(5)

Animals and birds. Owning, possessing, harboring or controlling any animal or bird which barks, bays, cries or squawks or makes any other noise continuously or incessantly for a period of ten minutes or makes such noise intermittently for one-half hour or more thereby causing a noise disturbance within a receiving property; provided, however, that at the time the animal or bird is making such n...

Amplified Music & Outdoor Sound

Wilmington bans exterior loudspeakers and amplified music plainly audible beyond your property line, allowing outdoor performances only during city-authorized events or under a special waiver from Licenses and Inspections.

Wilmington Outdoor Amplified Music Limits

Significant Restrictions

Wilmington City Code § 11-60(c)(3)

Using or operating any mechanical device or loudspeaker in a fixed or movable position exterior to any building, or mounted upon any aircraft, motor vehicle or amphibious craft, such that the sound therefrom causes a noise disturbance or is plainly audible at or beyond the property boundary of the source, or on a public way, except as provided below.

Aircraft Noise

Wilmington's noise ordinance carves aircraft and railroad noise out of its citywide decibel limits, requiring only compliance with applicable federal and state noise regulations instead of a local dBA cap.

Wilmington Aircraft Noise Rules Defer to Federal Law

Few Restrictions

Wilmington City Code § 11-66(c)

(c)Aircraft and railroad noise limits. All aircraft and railroads operating within the boundaries of the city shall comply with all applicable federal and state noise regulations.

Decibel Limits

Wilmington caps continuous industrial-district noise at 85 dBA measured at the receiving property's boundary, while business districts are held to a lower 65-75 dBA depending on time of day.

Wilmington Industrial Noise Cap: 85 dBA

Some Restrictions

Wilmington City Code § 11-65(b)(5)

No persons shall operate or cause to be operated any stationary source of sound in such a manner as to create a 24-hour equivalent A-weighted sound level which exceeds the leq limits set forth for the receiving land use category below and measured at the point of complaint origination within the property boundary of the receiving land use:a.Residence districts: 65 dBA between the hours of 7:00 ...

Vehicle Noise

Car stereos, radios, and high-fidelity equipment in vehicles can't be plainly audible more than 50 feet away on Wilmington streets, day or night, under the city's noise ordinance.

Wilmington Vehicle Stereo Noise Must Stay Under 50 Feet

Some Restrictions

Wilmington City Code § 11-60(c)(2)

Operating or permitting the use or operation of any radio receiving set, musical instrument, television, phonograph, drum, sound amplifier, automobile radio, automobile stereo or high fidelity equipment, or other device which produces, reproduces, or amplifies sound: ... In such a manner, at any time during any 24-hour day, and so as to be plainly audible across real property boundaries or thro...

Looking for New Castle County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Wilmington city rules.

Noise Ordinances in New Castle County