This map shows modeled outdoor noise across 92057 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 14,821 92057 residents, or 30.2%, live above that level. By land area, 36.5% of 92057 is above 55 dBA.
See how noise in 92057 compares to similar-sized zip codes.
Noise by Part of 92057
Average noise levels for 92057 residents, grouped by direction from the center of 92057. The highest population-weighted average is in central 92057; the lowest is in northwestern 92057, where just 25% of residents live in blocks above the EPA's 55 dBA threshold, a third of the share in the loudest section.
Central 92057
83% of people above 55 dBA
Southwestern 92057
32% of people above 55 dBA
Southeastern 92057
33% of people above 55 dBA
Northern 92057
23% of people above 55 dBA
Northwestern 92057
25% of people above 55 dBA
To the human ear, noise in central 92057 sounds about 212% louder than in northwestern 92057, a 16.4 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.
Calculated from the model's calibrated attenuation formula. About 8% of 92057 sits under tree canopy (lighter than most zip codes) and roughly 45% 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.