Noise Levels in Scotts Valley, CA | Find Quiet Neighborhoods With Our Sound Map
51 dBA
Average noise across Scotts Valley
Quiet office to normal conversation
3,218
Residents above the EPA 55 dBA threshold
21% of Scotts Valley residents
80 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Scotts Valley 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 3,218 Scotts Valley residents, or 21.2%, live above that level. By land area, 28.1% of Scotts Valley is above 55 dBA.
71.9% below 55 dBA
28.1% above 55 dBA
See how noise in Scotts Valley compares to similar-sized cities.
Noise by Part of Scotts Valley
Average noise levels for Scotts Valley residents, grouped by direction from the center of Scotts Valley. The highest population-weighted average is in southern Scotts Valley; the lowest is in western Scotts Valley, where just 12% of residents live in blocks above the EPA's 55 dBA threshold, about half the share in the loudest section.
Southern Scotts Valley
62.0 dBA · Loud
Busy restaurant
Southeastern Scotts Valley
60.5 dBA · Loud
Normal conversation an arm’s length away
Southwestern Scotts Valley
55.1 dBA · Moderate-loud
Quiet office to normal conversation
Central Scotts Valley
50.4 dBA · Moderate
Quiet office
Western Scotts Valley
49.9 dBA · Mostly quiet
Quiet office
To the human ear, noise in southern Scotts Valley sounds about 131% louder than in western Scotts Valley, a 12.1 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 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 office.
At source
80 dBA
City bus interior
165 ft
69 dBA
Highway traffic 50 ft away
330 ft
62 dBA
Busy restaurant
660 ft
55 dBA
Quiet office to normal conversation
¼ mile
48 dBA
Quiet office
½ mile
42 dBA
Quiet suburban street at night
Calculated from the model's calibrated attenuation formula. About 39% of Scotts Valley sits under tree canopy (about average for cities) and roughly 25% 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 Scotts Valley. 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.
How Noise Is Distributed Across Scotts Valley
The bar chart below shows the share of Scotts Valley residents in each noise band. About 79% of residents live below the EPA's 55 dBA threshold, and roughly 8% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Scotts Valley Compares
Scotts Valley sits at the quieter end of the spectrum. Below: how Scotts Valley's average outdoor noise and share of residents above the EPA threshold compare with Aptos, Soquel, Capitola, and Rio del Mar.
Average noise level (dBA)
Scotts Valley's 51.3 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 Scotts Valley because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 21.2% of Scotts Valley 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, 28.1% of Scotts Valley'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 Scotts Valley
- 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 39% of Scotts Valley is under tree cover (about average for cities), and the dominant land cover is evergreen forest. 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.
