Noise Levels in Rancho Rinconada, Cupertino, CA | Find Quiet Neighborhoods With Our Sound Map
52 dBA
Average noise across Rancho Rinconada
Quiet office to normal conversation
2,847
Residents above the EPA 55 dBA threshold
25% of Rancho Rinconada residents
74 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Rancho Rinconada 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 2,847 Rancho Rinconada residents, or 24.6%, live above that level. By land area, 27.7% of Rancho Rinconada is above 55 dBA.
72.3% below 55 dBA
27.7% above 55 dBA
See how noise in Rancho Rinconada compares to similar-sized neighborhoods.
Noise by Part of Rancho Rinconada
Average noise levels for Rancho Rinconada residents, grouped by direction from the center of Rancho Rinconada. The highest population-weighted average is in eastern Rancho Rinconada; the lowest is in southern Rancho Rinconada, where just 16% of residents live in blocks above the EPA's 55 dBA threshold, a third of the share in the loudest section.
Eastern Rancho Rinconada
58.1 dBA · Loud
Normal conversation an arm’s length away
Southeastern Rancho Rinconada
55.7 dBA · Moderate-loud
Quiet office to normal conversation
Northeastern Rancho Rinconada
52.6 dBA · Moderate
Quiet office to normal conversation
Central Rancho Rinconada
51.8 dBA · Moderate
Quiet office to normal conversation
Southern Rancho Rinconada
51.2 dBA · Moderate
Quiet office to normal conversation
To the human ear, noise in eastern Rancho Rinconada sounds about 61% louder than in southern Rancho Rinconada, a 6.9 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 74 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
74 dBA
City bus interior
165 ft
60 dBA
Normal conversation an arm’s length away
330 ft
51 dBA
Quiet office to normal conversation
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 10% of Rancho Rinconada sits under tree canopy (lighter than most neighborhoods) and roughly 49% 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
Norman Y Mineta San Jose International (SJC) sits northeast of Rancho Rinconada. 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 Rancho Rinconada, 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 Rancho Rinconada
The bar chart below shows the share of Rancho Rinconada residents in each noise band. About 86% 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 Rancho Rinconada Compares
Rancho Rinconada sits the lowest among the peer group. Below: how Rancho Rinconada's average outdoor noise and share of residents above the EPA threshold compare with Ponderosa Park, Monta Loma, Rose Garden, and North Los Altos.
Average noise level (dBA)
Rancho Rinconada's 52.1 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 Rancho Rinconada because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 24.6% of Rancho Rinconada 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, 27.7% of Rancho Rinconada'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 Rancho Rinconada
- 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 10% of Rancho Rinconada 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. Norman Y Mineta San Jose International's approach paths concentrate aviation noise to the northeast. Neighborhoods to the southwest of downtown show no measurable contribution from the airport.
