Noise Ordinances in Iron County, UT (2026)
8 rules for unincorporated Iron County, Utah.
Verified from official government sources
Quiet Hours
Unincorporated Iron County has no single posted curfew clock; instead, County Code Section 8.20.060(A) bars any loud, unnecessary, or offensive noise, at any hour, that could reasonably disturb a reasonable neighbor's comfort, slumber, or peace. Equipment-specific rules in the same section add a firm 10 p.m. to 7 a.m. line for stereos, construction, and vehicles.
Nighttime Quiet Hours, Iron County
Some RestrictionsIron County Code § 8.20.060(A)
A.General Prohibition. It is declared to be a nuisance and unlawful for any person to recklessly make or cause to be made or continued, within the residential portions of the county or in close proximity thereof, any loud or unnecessary or offensive noise or any noise which may reasonably be anticipated to annoy, disturb, injure, or endanger the comfort, slumber, peace, health, or safety of any...
Construction Hours
In a residential zone in unincorporated Iron County, running construction work loud enough to be heard 20 feet away between 10 p.m. and 7 a.m. is prima facie evidence of a noise nuisance under County Code Section 8.20.060(D)(3). The county commission can grant extended hours for continuous-operation projects or isolated sites that will not bother neighbors.
Construction Noise Hours, Iron County
Some RestrictionsIron County Code § 8.20.060(D)(3)
3.In a residential zone, performing or causing to be performed any construction work on any construction site between the hours of ten p.m. and seven a.m. in a way to be plainly audible at a distance of twenty feet from the source. The Iron County board of county commissioners may authorize extended hours for construction operations or procedures which, by their nature, require continuous opera...
Barking Dogs
Animal noise, including barking dogs, is a declared nuisance in unincorporated Iron County when it violates the county's general noise standard: any sound that would disturb a reasonable person's comfort, slumber or peace in a residential area, day or night, regardless of decibel measurement.
Barking Dog / Animal Noise Nuisance, Iron County
Some RestrictionsIron County Code §§ 8.20.030(F), 8.20.060(A)
F.All unnecessary or unauthorized noises and annoying vibrations, including animal noises, in violation of Section 8.20.060 of this chapter; ... A.General Prohibition. It is declared to be a nuisance and unlawful for any person to recklessly make or cause to be made or continued, within the residential portions of the county or in close proximity thereof, any loud or unnecessary or offensive no...
Leaf Blower Rules
Residential landscaping equipment gets a carve-out from Iron County's noise nuisance rules: Code Section 8.20.060(E)(8) exempts lawnmowers, leaf blowers, edgers, hedge trimmers, and similar equipment used on a periodic basis between 7 a.m. and sunset from the county's general noise ordinance, so daytime yard work is not treated as a nuisance.
Leaf Blower Hours, Iron County
Light RestrictionsIron County Code § 8.20.060(E)(8)
E.Exemptions. ... The following are exempted from compliance with this section:1.Sounds generated from any government or emergency vehicle while engaged in necessary public business; ... 7.Any activity for which a county permit or license was issued; and8.Sounds from equipment used to maintain landscaping on residential property on a periodic basis, including lawnmowers, leaf blowers, edgers, h...
Amplified Music & Outdoor Sound
In unincorporated Iron County, running a stereo, speaker, or amplifier loud enough to disturb a neighbor's peace is a nuisance under County Code Section 8.20.060(B). Operating any sound device so it is plainly audible 20 feet away between 10 p.m. and 7 a.m. is prima facie evidence of a violation, letting the sheriff's office cite the responsible person on the spot.
Amplified Music Rules, Iron County
Some RestrictionsIron County Code § 8.20.060(B), (D)(1)
B.Prohibitions on Use or Operation of Sound Generating Machines or Devices in Residential Areas. The reckless use or operation of any sound production or reproduction device, radio receiving set, musical instrument, drums, phonograph, stereo, television set, compact disc player, video recorder/player, loud speaker(s), or other similar machine or device for the producing or reproducing of sound ...
Aircraft Noise
New buildings within the Cedar City regional airport's approach zone in unincorporated Iron County must achieve at least twenty-five decibels of sound attenuation if they hold offices, noise-sensitive uses, or dwellings. Section 17.58.050(B)(4) is part of the airport compatible land use overlay that also restricts residential density near the runway.
Iron County Airport Noise Attenuation Rule
Some RestrictionsIron County Code § 17.58.050(A),(B)(4)
A.Airport Compatible Land Use Overlay Zones Established. For the purpose of regulating the development of noise sensitive land uses to promote compatibility between the airport and the surrounding land uses, to protect the airport from incompatible development and to promote the health, safety and general welfare of property users, the controlled area of Cedar City regional airport is divided i...
Decibel Limits
Iron County has no general residential noise ordinance with numeric decibel limits; the code's only zone-and-time-based dBA standard governs utility-scale solar power plants under Section 17.33.030(B)(5), capping noise at 50 dBA at a neighboring residential lot line, 45 dBA at a residence between 9 p.m. and 7 a.m., and 60 dBA at the project boundary.
Solar Power Plant Noise Limits, Iron County, UT
Some RestrictionsIron County Code § 17.33.030(B)(5)
5.Noise. No operating solar power plant shall produce noise that exceeds any of the following limitations. Adequate setbacks shall be provided to comply with these limitations.a.Fifty dBA, as measured at the property line of any neighboring residentially-zoned lot;b.Forty-five dBA, as measured at any existing neighboring residence between the hours of nine p.m. and seven a.m.c.Sixty dBA, as mea...
Vehicle Noise
Iron County Code Section 8.20.060(D)(4) and (D)(5) target vehicle noise directly: an engine brake running audibly 20 feet away between 10 p.m. and 7 a.m., or any vehicle operated with a defective exhaust, no muffler, or a cut-out or by-pass device, is prima facie evidence of a noise nuisance violation in unincorporated Iron County.
Vehicle Noise Rules, Iron County
Some RestrictionsIron County Code § 8.20.060(D)(4), (D)(5)
4.The operation of any motor vehicle in a residential area with a dynamic braking device engaged, except to avoid imminent danger, between the hours of ten p.m. and seven a.m. in such a manner as to be plainly audible at a distance of twenty feet from the source.5.Operating or causing to be operated a motor vehicle: (a) with a defective exhaust system that affects sound reduction; (b) without a...
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