Quiet hours in Maricopa County, AZ — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Maricopa County has no county-level quiet hours for unincorporated areas. ARS §13-2916 (disorderly conduct) is the sole enforcement tool. The Maricopa County Sheriff's Office (MCSO) handles complaints. HOA CC&Rs are the primary noise control in subdivisions.
Arizona counties have limited regulatory authority compared to cities. Maricopa County does not enact comprehensive noise ordinances or decibel standards for unincorporated areas. The only enforcement tool is ARS §13-2916, which prohibits unreasonable noise that disturbs the peace. MCSO responds to noise complaints in unincorporated territory. There are no county-set quiet hours, decibel limits, or sound measurement standards. In most unincorporated subdivisions, HOA CC&Rs impose stricter noise rules than anything the county provides. Rural areas and horse properties outside HOA governance have essentially no noise regulation beyond state criminal law.
ARS §13-2916 disorderly conduct: Class 1 misdemeanor, fine up to $2,500 plus up to 6 months jail. Civil nuisance suits also available.
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See how Maricopa County's quiet hours rules stack up against other locations.
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