Noise Levels in Bonita Long Canyon, Bonita, CA | Find Quiet Neighborhoods With Our Sound Map
49 dBA
Average noise across Bonita Long Canyon
Quiet office
565
Residents above the EPA 55 dBA threshold
14% of Bonita Long Canyon residents
58 dBA
Loudest residential point
Normal conversation an arm’s length away
This map shows modeled outdoor noise across Bonita Long Canyon 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 565 Bonita Long Canyon residents, or 14.0%, live above that level. By land area, 16.2% of Bonita Long Canyon is above 55 dBA.
83.8% below 55 dBA
16.2% above 55 dBA
See how noise in Bonita Long Canyon compares to similar-sized neighborhoods.
Noise by Part of Bonita Long Canyon
Average noise levels for Bonita Long Canyon residents, grouped by direction from the center of Bonita Long Canyon. Southern Bonita Long Canyon carries the highest population-weighted average; Northern Bonita Long Canyon carries the lowest. Just 6% of residents in Northern Bonita Long Canyon live in blocks above the EPA's 55 dBA threshold, a third of the share in Southern Bonita Long Canyon.
Central Bonita Long Canyon
48.6 dBA · Mostly quiet
Quiet office
Eastern Bonita Long Canyon
49.5 dBA · Mostly quiet
Quiet office
Northern Bonita Long Canyon
47.8 dBA · Mostly quiet
Quiet office
Southern Bonita Long Canyon
51.6 dBA · Moderate
Quiet office to normal conversation
Western Bonita Long Canyon
49.9 dBA · Mostly quiet
Quiet office
Southern Bonita Long Canyon sounds about 30% louder than Northern Bonita Long Canyon to the human ear, a 3.8 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 58 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
58 dBA
Normal conversation an arm’s length away
165 ft
44 dBA
Quiet suburban street at night
330 ft
37 dBA
Soft rainfall
660 ft
35 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 20% of Bonita Long Canyon sits under tree canopy (heavier than most neighborhoods) and roughly 32% 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 northwest of Bonita Long Canyon. 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 Bonita Long Canyon, particularly to the southeast, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Bonita Long Canyon
The bar chart below shows the share of Bonita Long Canyon residents in each noise band. About 99% of residents live below the EPA's 55 dBA threshold, and roughly 0% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Bonita Long Canyon Compares
Bonita Long Canyon sits the lowest among the peer group. Below: how Bonita Long Canyon's average outdoor noise and share of residents above the EPA threshold compare with Eastlake Vistas, Eastlake Trails, Terra Nova, and Ridgeview-Webster.
Average noise level (dBA)
Bonita Long Canyon's 49.4 dBA pop-weighted average is the lowest among the peer group. California as a whole averages 54.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Bonita Long Canyon because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 14.0% of Bonita Long Canyon residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's fewer than any of its peer group. Measured by land area instead, 16.2% of Bonita Long Canyon'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 Bonita Long Canyon
- 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 20% of Bonita Long Canyon is under tree cover (heavier than most neighborhoods), and the dominant land cover is low-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 northwest. Neighborhoods to the southeast of downtown show no measurable contribution from the airport.
