Noise Levels in Chino Hills, CA | Find Quiet Neighborhoods With Our Sound Map
53 dBA
Average noise across Chino Hills
Quiet office to normal conversation
22,866
Residents above the EPA 55 dBA threshold
32% of Chino Hills residents
88 dBA
Loudest residential point
Lawnmower at 1 m
This map shows modeled outdoor noise across Chino 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.
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 22,866 Chino Hills residents, or 31.6%, live above that level. By land area, 35.7% of Chino Hills is above 55 dBA.
Average noise levels for Chino Hills residents, grouped by direction from the center of Chino Hills. Eastern Chino Hills carries the highest population-weighted average; Southern Chino Hills carries the lowest. Just 15% of residents in Southern Chino Hills live in blocks above the EPA's 55 dBA threshold, about half the share in Eastern Chino Hills.
Central Chino Hills
53.3 dBA · Moderate-loud
Quiet office to normal conversation
34% of people above 55 dBA
QuietLoud
Eastern Chino Hills
56.3 dBA · Moderate-loud
Normal conversation an arm’s length away
42% of people above 55 dBA
QuietLoud
Northern Chino Hills
54.2 dBA · Moderate-loud
Quiet office to normal conversation
36% of people above 55 dBA
QuietLoud
Southern Chino Hills
48.0 dBA · Mostly quiet
Quiet office
15% of people above 55 dBA
QuietLoud
Western Chino Hills
50.4 dBA · Moderate
Quiet office
20% of people above 55 dBA
QuietLoud
Eastern Chino Hills sounds about 78% louder than Southern Chino Hills to the human ear, a 8.3 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 Chino Valley Fwy do you need to be?
Chino Valley Fwy produces an estimated 77 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
77 dBA
City bus interior
165 ft
64 dBA
Busy restaurant
330 ft
57 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 9% of Chino Hills sits under tree canopy (lighter than most cities) and roughly 40% 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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Rail Noise
Active freight rail runs through parts of Chino Hills. For most blocks the rail-only contribution is small. Combined road-plus-rail noise rarely exceeds road noise on its own. The exceptions are the handful of blocks within roughly a quarter mile of the right-of-way during pass-through hours.
Use the Rail toggle on the map above to isolate rail's contribution from road and aviation.
Airport Noise
Ontario International (ONT) sits northeast of Chino 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 50 dBA on the map's Overall layer. Blocks on the opposite side of Chino Hills, particularly to the southwest, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Chino Hills
The bar chart below shows the share of Chino Hills residents in each noise band. About 62% of residents live below the EPA's 55 dBA threshold, and roughly 14% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Chino Hills Compares
Chino Hills sits the lowest among the peer group. Below: how Chino Hills's average outdoor noise and share of residents above the EPA threshold compare with Chino, Yorba Linda, Upland, and Eastvale.
Average noise level (dBA)
Chino Hills's 53.3 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 Chino Hills because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 31.6% of Chino 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, 35.7% of Chino 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 Chino 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 Chino Valley Fwy 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 9% of Chino Hills 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. Ontario International's approach paths concentrate aviation noise to the northeast. Neighborhoods to the southwest 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.
