This map shows modeled outdoor noise across 74339 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 296 74339 residents, or 20.1%, live above that level. By land area, 17.8% of 74339 is above 55 dBA.
See how noise in 74339 compares to similar-sized zip codes.
Noise by Part of 74339
Average noise levels for 74339 residents, grouped by direction from the center of 74339. Southern 74339 carries the highest population-weighted average; Eastern 74339 carries the lowest. Just 22% of residents in Eastern 74339 live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in Southern 74339.
Central 74339
15% of people above 55 dBA
Eastern 74339
22% of people above 55 dBA
Northern 74339
19% of people above 55 dBA
Southern 74339
29% of people above 55 dBA
Western 74339
19% of people above 55 dBA
Southern 74339 sounds about 21% louder than Eastern 74339 to the human ear, a 2.7 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 U069 do you need to be?
U069 produces an estimated 65 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 6% of 74339 sits under tree canopy (lighter than most zip codes) and roughly 38% 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.