Aircraft Noise: Costa Mesa vs Midway City
How do aircraft noise rules compare between Costa Mesa, CA and Midway City, CA?
Costa Mesa has fewer restrictions than Midway City.
Costa Mesa, CA
Orange County
Costa Mesa is within the Airport Environs Land Use Plan for John Wayne Airport (SNA), which operates under departure noise limits and a voluntary nighttime curfew. The city enforces sound insulation requirements for new construction in noise impact zones.
View full Costa Mesa rules →Midway City, CA
Orange County
John Wayne Airport (SNA) generates significant aircraft noise in unincorporated Orange County. The airport operates under strict departure noise limits and a voluntary nighttime curfew (11 PM to 7 AM). The County monitors noise through a permanent measurement system and maintains noise contour maps affecting residential building requirements.
View full Midway City rules →Key Facts Comparison
| Fact | Costa Mesa | Midway City |
|---|---|---|
| Primary Airport | John Wayne (SNA) — 2 miles SE | John Wayne (SNA) |
| Departure Curfew | 11 PM – 7 AM voluntary | - |
| Noise Limit | 89.5 dBA single-event departure | 89.5 dBA departure |
| Sound Insulation Zone | 65+ CNEL contour | - |
| Noise Complaints | (949) 252-5185 JWA office | - |
| Curfew | - | 11 PM to 7 AM voluntary |
| Noise Office | - | (949) 252-5185 |
| Flight Authority | - | FAA exclusively |
Highlighted rows indicate differences between cities.
Costa Mesa FAQ
Does Costa Mesa have an airport noise curfew?
John Wayne Airport has a voluntary curfew restricting commercial departures from 11 PM to 7 AM. This is not a Costa Mesa ordinance but an airport Settlement Agreement provision.
Where do I file an aircraft noise complaint in Costa Mesa?
Contact the John Wayne Airport Noise Information Office at (949) 252-5185 or file online through the JWA website noise complaint system.
Does airport noise affect building permits in Costa Mesa?
Yes. Properties within the 65+ CNEL noise contour must meet sound insulation standards under the AELUP before building permits are issued.
Midway City FAQ
How do I report aircraft noise in Orange County?
Contact the JWA Noise Information Office at (949) 252-5185 or file a complaint online through the John Wayne Airport website.
Does John Wayne Airport have a curfew?
Yes. A voluntary curfew restricts commercial departures from 11 PM to 7 AM and arrivals from 11 PM to 8 AM under the Settlement Agreement.
Can the county restrict flight paths?
No. Aircraft operations and flight paths are under exclusive FAA jurisdiction. The county manages land use compatibility through AELUP noise contour zoning.
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