5 county-level rules, plus city-specific rules for 1 city in Coconino County, Arizona.
Verified from official government sources
Arizona sets no statewide decibel limit, so noise runs on local rules. Unincorporated Coconino County handles it through disorderly conduct and its nuisance ordinance; Flagstaff, a NAU college town, runs a detailed late-night noise ordinance.
A.R.S. § 13-2904
A person commits disorderly conduct if, with intent to disturb the peace or quiet of a neighborhood, family or person, or with knowledge of doing so, such person ... Makes unreasonable noise
Unincorporated Coconino County sets no fixed construction-hours ordinance; job-site noise falls under the general nuisance rules. Flagstaff exempts daytime construction from its noise ordinance and limits loud work overnight.
Persistent barking is treated as a noise nuisance in Coconino County. Animal control and the Sheriff's Office handle unincorporated complaints; Flagstaff's ordinance specifically bars dogs from barking day or night in a manner that disturbs the peace.
A.R.S. § 13-2904
A person commits disorderly conduct if, with intent to disturb the peace or quiet of a neighborhood, family or person, or with knowledge of doing so, such person ... Makes unreasonable noise
Coconino County and its cities don't ban leaf blowers or gas-powered equipment. They're limited only by the general noise rules, so early-morning or late-night use near homes can still draw a disturbance complaint.
Amplified music falls under the county nuisance ordinance in unincorporated areas and city codes elsewhere. Flagstaff's downtown entertainment district and NAU party scene make late-night amplified sound a recurring, closely watched issue.
A.R.S. § 13-2904
A person commits disorderly conduct if, with intent to disturb the peace or quiet of a neighborhood, family or person, or with knowledge of doing so, such person ... Makes unreasonable noise
1 cities in Coconino County have their own noise ordinances rules. Each link goes to that city's dedicated page with code citations.
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