This map shows modeled outdoor noise across Everett Mall South 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 2,666 Everett Mall South residents, or 27.2%, live above that level. By land area, 34.6% of Everett Mall South is above 55 dBA.
See how noise in Everett Mall South compares to similar-sized neighborhoods.
Noise by Part of Everett Mall South
Average noise levels for Everett Mall South residents, grouped by direction from the center of Everett Mall South. Southern Everett Mall South carries the highest population-weighted average; Northern Everett Mall South carries the lowest. Just 12% of residents in Northern Everett Mall South live in blocks above the EPA's 55 dBA threshold, a third of the share in Southern Everett Mall South.
Central Everett Mall South
25% of people above 55 dBA
Eastern Everett Mall South
44% of people above 55 dBA
Northern Everett Mall South
12% of people above 55 dBA
Southern Everett Mall South
40% of people above 55 dBA
Western Everett Mall South
11% of people above 55 dBA
Southern Everett Mall South sounds about 97% louder than Northern Everett Mall South to the human ear, a 9.8 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 I-5 do you need to be?
I-5 produces an estimated 78 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.
Calculated from the model's calibrated attenuation formula. About 24% of Everett Mall South sits under tree canopy (heavier than most neighborhoods) and roughly 56% 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.