Noise Levels in Hidden Hills, CA | Find Quiet Neighborhoods With Our Sound Map
44 dBA
Average noise across Hidden Hills
Quiet suburban street at night
106
Residents above the EPA 55 dBA threshold
7% of Hidden Hills residents
82 dBA
Loudest residential point
Food blender at arm’s length
This map shows modeled outdoor noise across Hidden Hills 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 106 Hidden Hills residents, or 7.0%, live above that level. By land area, 19.0% of Hidden Hills is above 55 dBA.
81.0% below 55 dBA
19.0% above 55 dBA
See how noise in Hidden Hills compares to similar-sized cities.
Noise by Part of Hidden Hills
Average noise levels for Hidden Hills residents, grouped by direction from the center of Hidden Hills. Southern Hidden Hills carries the highest population-weighted average; Northern Hidden Hills carries the lowest. Just 0% of residents in Northern Hidden Hills live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Southern Hidden Hills.
Central Hidden Hills
45.0 dBA · Mostly quiet
Quiet suburban street at night
Eastern Hidden Hills
46.7 dBA · Mostly quiet
Quiet office
Northern Hidden Hills
36.0 dBA · Quiet
Soft rainfall
Southern Hidden Hills
49.4 dBA · Mostly quiet
Quiet office
Western Hidden Hills
39.4 dBA · Quiet
Soft rainfall
Southern Hidden Hills sounds about 153% louder than Northern Hidden Hills to the human ear, a 13.4 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 82 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 office.
At source
82 dBA
Food blender at arm’s length
165 ft
69 dBA
Highway traffic 50 ft away
330 ft
61 dBA
Busy restaurant
660 ft
54 dBA
Quiet office to normal conversation
¼ mile
47 dBA
Quiet office
½ mile
39 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 15% of Hidden Hills sits under tree canopy (lighter than most cities) and roughly 23% 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
Bob Hope (BUR) sits east of Hidden Hills. 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 65 dBA on the map's Overall layer. Blocks on the opposite side of Hidden Hills, particularly to the west, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Hidden Hills
The bar chart below shows the share of Hidden Hills residents in each noise band. About 90% of residents live below the EPA's 55 dBA threshold, and roughly 10% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Hidden Hills Compares
Hidden Hills sits at the quieter end of the spectrum. Below: how Hidden Hills's average outdoor noise and share of residents above the EPA threshold compare with Monte Nido, Cornell, Leona Valley, and Rolling Hills.
Average noise level (dBA)
Hidden Hills's 43.6 dBA pop-weighted average is at the quieter end of the spectrum. California as a whole averages 54.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Hidden Hills because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 7.0% of Hidden Hills 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, 19.0% of Hidden Hills'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 Hidden Hills
- 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 15% of Hidden Hills is under tree cover (lighter than most cities), 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. Bob Hope's approach paths concentrate aviation noise to the east. Neighborhoods to the west of downtown show no measurable contribution from the airport.
