Des Moines, IA Noise Ordinances: Amplified Music & Outdoor Sound (2026)
Amplified music rules in Des Moines, IA, also called sound permit, PA system, or live music ordinances, set decibel limits, time-of-day restrictions, and when permits are required.
Key Facts
- Standard cap
- 85 dBC at property line
- Standard hours
- 9 a.m.–10 p.m.
- Permit issuer
- Community development dept.
- Zoning limit
- Industrial/commercial/mixed-use only
- Penalty
- Simple misdemeanor / infraction
Summary
Des Moines requires a sound permit for amplified music or speech that creates a noise disturbance, capping most outdoor events at 85 dBC and limiting the hours and zoning districts where it's allowed.
(1)Type "A" permit. A type "A" permit may be issued for sound equipment emitting live music, reproduced music or human speech registering not more than 85 dBCs when measured at the real property boundary of the permitted property or at a distance of 50 feet from the sound equipment if issued in conjunction with a street closing. A type "A" permit may be issued only in areas of the city zoned for industrial, commercial and/or mixed use and only between the hours of 9:00 a.m. and 10:00 p.m.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 38 Update 1).
Full Breakdown
Under Municipal Code § 42-258, anyone using sound equipment that creates a noise disturbance beyond normal activity needs a permit from the community development department. A standard Type "A" permit (industrial, commercial or mixed-use zones only) caps live or reproduced music and speech at 85 dBC measured at the property line, generally between 9:00 a.m. and 10:00 p.m., with later cutoffs downtown and in the East Village. Separate permit types cover parks, church/school grounds, residential street closures and specific venues like Water Works Park and the Simon Estes Riverfront Amphitheater, each with its own dBC ceiling and hours. This is a city ordinance and applies inside Des Moines only. West Des Moines, Urbandale, Ankeny, Clive, Windsor Heights and Pleasant Hill enforce their own separate noise codes.
Violations & Fines
Operating unpermitted sound equipment, exceeding the permit's dBC limit, or violating permit conditions is a simple misdemeanor or municipal infraction under § 42-268; a second violation within 12 months can trigger permit revocation under § 42-258(h).
Frequently Asked Questions
Do I need a permit for a backyard party with a speaker?
Can I run amplified music later downtown?
Sources & Official References
Other rules in Des Moines
Compare Des Moines to another location·View the Iowa noise ordinances overview
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