Noise Levels in Carmel Mountain, San Diego, CA | Find Quiet Neighborhoods With Our Sound Map
57 dBA
Average noise across Carmel Mountain
Normal conversation an arm’s length away
4,094
Residents above the EPA 55 dBA threshold
49% of Carmel Mountain residents
85 dBA
Loudest residential point
Food blender at arm’s length
This map shows modeled outdoor noise across Carmel Mountain 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.
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 4,094 Carmel Mountain residents, or 48.6%, live above that level. By land area, 49.7% of Carmel Mountain is above 55 dBA.
50.3% below 55 dBA
49.7% above 55 dBA
See how noise in Carmel Mountain compares to similar-sized neighborhoods.
Noise by Part of Carmel Mountain
Average noise levels for Carmel Mountain residents, grouped by direction from the center of Carmel Mountain. The highest population-weighted average is in western Carmel Mountain; the lowest is in northeastern Carmel Mountain, where just 29% of residents live in blocks above the EPA's 55 dBA threshold, about half the share in the loudest section.
Western Carmel Mountain
72.0 dBA · Loud
City bus interior
Central Carmel Mountain
62.9 dBA · Loud
Busy restaurant
Southeastern Carmel Mountain
56.2 dBA · Moderate-loud
Normal conversation an arm’s length away
Eastern Carmel Mountain
55.5 dBA · Moderate-loud
Quiet office to normal conversation
Northeastern Carmel Mountain
54.4 dBA · Moderate-loud
Quiet office to normal conversation
To the human ear, noise in western Carmel Mountain sounds about 239% louder than in northeastern Carmel Mountain, a 17.6 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 I-15 do you need to be?
I-15 produces an estimated 80 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 quiet suburban street at night.
At source
80 dBA
City bus interior
165 ft
66 dBA
Busy restaurant
330 ft
58 dBA
Normal conversation an arm’s length away
660 ft
50 dBA
Quiet office
¼ mile
42 dBA
Quiet suburban street at night
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 11% of Carmel Mountain sits under tree canopy (lighter than most neighborhoods) and roughly 52% 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
San Diego International (SAN) sits south of Carmel Mountain. The U.S. Department of Transportation measures aviation noise around this airport directly, 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 75 dBA on the map's Overall layer. Blocks on the opposite side of Carmel Mountain, particularly to the north, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Carmel Mountain
The bar chart below shows the share of Carmel Mountain residents in each noise band. About 39% of residents live below the EPA's 55 dBA threshold, and roughly 26% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Carmel Mountain Compares
Carmel Mountain sits the highest among the peer group. Below: how Carmel Mountain's average outdoor noise and share of residents above the EPA threshold compare with Black Mountain Ranch, Sorrento Valley, North Broadway, and Bay Ho.
Average noise level (dBA)
Carmel Mountain's 56.6 dBA pop-weighted average is the highest among the peer group. California as a whole averages 54.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Carmel Mountain because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 48.6% of Carmel Mountain residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's more than any of its peer group. Measured by land area instead, 49.7% of Carmel Mountain'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 Carmel Mountain
- 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 I-15 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 11% of Carmel Mountain is under tree cover (lighter than most neighborhoods), 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. San Diego International's approach paths concentrate aviation noise to the south. Neighborhoods to the north of downtown show no measurable contribution from the airport.
