Noise Levels in 92308, CA | Find Quiet Neighborhoods With Our Sound Map
48 dBA
Average noise across 92308
Quiet office
4,676
Residents above the EPA 55 dBA threshold
13% of 92308 residents
84 dBA
Loudest residential point
Food blender at arm’s length
This map shows modeled outdoor noise across 92308 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 4,676 92308 residents, or 12.9%, live above that level. By land area, 9.6% of 92308 is above 55 dBA.
90.4% below 55 dBA
9.6% above 55 dBA
See how noise in 92308 compares to similar-sized zip codes.
Noise by Part of 92308
Average noise levels for 92308 residents, grouped by direction from the center of 92308. The highest population-weighted average is in northern 92308; the lowest is in southwestern 92308, where just 2% of residents live in blocks above the EPA's 55 dBA threshold, a fifth of the share in the loudest section.
Northern 92308
52.3 dBA · Moderate
Quiet office to normal conversation
Northwestern 92308
51.3 dBA · Moderate
Quiet office to normal conversation
Eastern 92308
48.1 dBA · Mostly quiet
Quiet office
Western 92308
46.2 dBA · Mostly quiet
Quiet office
Southwestern 92308
44.6 dBA · Quiet
Quiet suburban street at night
To the human ear, noise in northern 92308 sounds about 71% louder than in southwestern 92308, a 7.7 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 84 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
84 dBA
Food blender at arm’s length
165 ft
70 dBA
Highway traffic 50 ft away
330 ft
62 dBA
Busy restaurant
660 ft
54 dBA
Quiet office to normal conversation
¼ mile
46 dBA
Quiet suburban street at night
½ mile
38 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 0% of 92308 sits under tree canopy (much lighter than most zip codes) and roughly 15% 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 92308. 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 92308
The bar chart below shows the share of 92308 residents in each noise band. About 90% of residents live below the EPA's 55 dBA threshold, and roughly 1% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How 92308 Compares
92308 sits the lowest among the peer group. Below: how 92308's average outdoor noise and share of residents above the EPA threshold compare with 92307, 92394, 92395, and 92301.
Average noise level (dBA)
92308's 48.4 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 92308 because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 12.9% of 92308 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, 9.6% of 92308'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 92308
- 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 0% of 92308 is under tree cover (much lighter than most zip codes), and the dominant land cover is low-density developed open space. 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.
