Noise Levels in Corona Del Mar, CA | Find Quiet Neighborhoods With Our Sound Map
55 dBA
Average noise across Corona Del Mar
Quiet office to normal conversation
5,606
Residents above the EPA 55 dBA threshold
50% of Corona Del Mar residents
73 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Corona Del Mar at 100-meter resolution, combining road, aviation, and rail sources. Green areas measure below 45 dBA. Orange and red exceed the EPA's 55 dBA outdoor threshold linked to long-term health effects. Use the layer toggles to view each source on its own or all together.
Overall
Road
Rail
Aviation
Click the map to explore
35 dBa55 dBa (EPA limit)90+ dBa
3545557090
Quietest (dBA)Loudest
Colorblind friendlyoff
What the numbers sound like
30 dBAWhisper
40 dBASoft rainfall
45 dBAQuiet suburban street at night
50 dBAQuiet office
55 dBAEPA outdoor threshold: light traffic 100 ft away
60 dBANormal conversation an arm's length away
65 dBABusy restaurant
70 dBAHighway traffic 50 ft away
80 dBACity bus interior
Population Above the EPA Outdoor Threshold
The EPA's 55 dBA outdoor reference level is a common benchmark for residential noise exposure, especially for activity interference, annoyance, and long-term community noise concerns. About 5,606 Corona Del Mar residents, or 49.5%, live above that level. By land area, 57.1% of Corona Del Mar is above 55 dBA.
Average noise levels for Corona Del Mar residents, grouped by direction from the center of Corona Del Mar. Southern Corona Del Mar carries the highest population-weighted average; Central Corona Del Mar carries the lowest. Just 46% of residents in Central Corona Del Mar live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in Southern Corona Del Mar.
Central Corona Del Mar
51.7 dBA · Moderate
Quiet office to normal conversation
46% of people above 55 dBA
QuietLoud
Eastern Corona Del Mar
51.8 dBA · Moderate
Quiet office to normal conversation
23% of people above 55 dBA
QuietLoud
Northern Corona Del Mar
55.2 dBA · Moderate-loud
Quiet office to normal conversation
28% of people above 55 dBA
QuietLoud
Southern Corona Del Mar
56.6 dBA · Moderate-loud
Normal conversation an arm’s length away
61% of people above 55 dBA
QuietLoud
Western Corona Del Mar
56.5 dBA · Moderate-loud
Normal conversation an arm’s length away
70% of people above 55 dBA
QuietLoud
Southern Corona Del Mar sounds about 40% louder than Central Corona Del Mar to the human ear, a 4.9 dBA gap. Every 10 dBA roughly doubles perceived loudness. Within any of these directions, two homes a quarter mile apart can still differ by 10 or more dBA depending on how close they sit to a major highway.
How far back from do you need to be?
produces an estimated 73 dBA at its loudest centerline points. Noise drops logarithmically with distance, with the exact rate depending on what's between you and the road. Tree cover, walls, terrain, and pavement type all matter. At roughly a quarter mile back, traffic fades into the noise level of a soft rainfall.
At source
73 dBA
City bus interior
165 ft
59 dBA
Normal conversation an arm’s length away
330 ft
51 dBA
Quiet office
660 ft
43 dBA
Quiet suburban street at night
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 8% of Corona Del Mar sits under tree canopy (lighter than most cities) and roughly 55% is impervious surface like pavement and rooftops. Both are folded into the per-place decay rate above. Heavier canopy pulls noise down faster with distance; impervious surfaces slow the drop.
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Airport Noise
John Wayne/Orange County (SNA) sits north of Corona Del Mar. The U.S. Department of Transportation models aviation noise around this airport from federal traffic data, and the model uses those federal measurements rather than synthetic predictions.
Blocks under the approach and departure paths carry combined road-plus-aviation noise, with some exceeding 55 dBA on the map's Overall layer. Blocks on the opposite side of Corona Del Mar, particularly to the south, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Corona Del Mar
The bar chart below shows the share of Corona Del Mar residents in each noise band. About 42% of residents live below the EPA's 55 dBA threshold, and roughly 11% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Corona Del Mar Compares
Corona Del Mar sits at the louder end of the spectrum. Below: how Corona Del Mar's average outdoor noise and share of residents above the EPA threshold compare with Newport Coast, Midway City, Hawaiian Gardens, and Trabuco Canyon.
Average noise level (dBA)
Corona Del Mar's 54.8 dBA pop-weighted average is at the louder end of the spectrum. California as a whole averages 54.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Corona Del Mar because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 49.5% of Corona Del Mar residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's in the middle of its peer group. Measured by land area instead, 57.1% of Corona Del Mar's footprint sits above 55 dBA, against a California average of 36.0% and a national average of 28.1%.
What This Means if You're Moving to Corona Del Mar
Distance from highways matters more than the neighborhood name. Two homes in the same zip code can differ by 20 dBA if one sits 100 meters from and the other 500 meters away. The model captures this at 100-meter resolution, so noise exposure changes block by block.
Tree canopy can help reduce modeled noise exposure. Roughly 8% of Corona Del Mar is under tree cover (lighter than most cities), and the dominant land cover is medium-intensity developed land. Both are measured from federal USDA Forest Service and USGS satellite imagery at 30-meter resolution. Streets with 60% or higher canopy show 3 to 5 dBA lower noise than comparable streets with bare ground or pavement, which is why the per-place decay rate above already accounts for it.
Airport noise is directional. John Wayne/Orange County's approach paths concentrate aviation noise to the north. Neighborhoods to the south of downtown show no measurable contribution from the airport.
Sources & Methodology
The BestNeighborhood noise model is calibrated against nearly one million federal ground-truth measurements across four states. Road noise is computed from segment-level federal traffic data and propagated outward using physics-based acoustic decay, with attenuation rates that depend on the surrounding land cover.
All inputs are published federal datasets. Block-level noise is computed by combining road, rail, and aviation sound sources in the energy domain, the same physics used in professional environmental noise assessments. Read the full methodology.
