Amplified Music & Events: Altadena vs Pomona
How do amplified music & events rules compare between Altadena, CA and Pomona, CA?
Altadena has fewer restrictions than Pomona.
Altadena, CA
Los Angeles County
Amplified music and sound devices in unincorporated LA County are regulated under Chapter 12.08 (Noise Control). Residential areas: 45 dB nighttime (10 PM-7 AM), 50 dB daytime. Sound amplifying equipment in or within 500 ft of residential zones is restricted for commercial purposes.
View full Altadena rules →Pomona, CA
Los Angeles County
Pomona prohibits amplified music audible beyond 50 ft between 10 PM and 7 AM, and beyond 150 ft during daytime hours. Citations filed with the LA County District Attorney.
View full Pomona rules →Key Facts Comparison
| Fact | Altadena | Pomona |
|---|---|---|
| Residential Night | 45 dB (10 PM-7 AM) | - |
| Residential Day | 50 dB (7 AM-10 PM) | - |
| Commercial Use | Restricted near residential | - |
| Reference | Title 12, Chapter 12.08 | - |
| Nighttime (10 PM-7 AM) | - | Audible beyond 50 ft = violation |
| Daytime (7 AM-10 PM) | - | Audible beyond 150 ft = violation |
| Code | - | Pomona City Code Ch. 18, Art. VII |
| Enforcement | - | Citation filed with LA County DA |
Highlighted rows indicate differences between cities.
Altadena FAQ
What are the noise hours for amplified music in LA County?
Amplified sound must not be audible beyond the property line between 10 PM and 7 AM weekdays, or 10 PM and 8 AM weekends. Daytime amplified sound cannot exceed 5 dB above ambient noise at the property line.
Do I need a permit for a party with amplified music?
Not for an occasional private party that stays within noise limits. Large events or recurring parties may require a Temporary Use Permit from the Department of Regional Planning at (213) 974-6411.
How do I file a noise complaint about amplified music?
Call the LA County Sheriff's non-emergency line at (323) 267-4800 for immediate noise disturbances. For ongoing issues, file a code enforcement complaint at (888) 756-2700.
Pomona FAQ
Can I have a loud party in Pomona?
Music and sound must not be audible beyond 50 feet after 10 PM or 150 feet during the day. Police will issue citations for disturbing parties.
Are there extra noise protections near schools?
Yes. PMC prohibits noise near schools, hospitals, churches, and libraries that exceeds zone standards or interferes with institutional use.
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