This map shows modeled outdoor noise across 75189 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 2,338 75189 residents, or 9.2%, live above that level. By land area, 12.9% of 75189 is above 55 dBA.
See how noise in 75189 compares to similar-sized zip codes.
Noise by Part of 75189
Average noise levels for 75189 residents, grouped by direction from the center of 75189. Western 75189 carries the highest population-weighted average; Southern 75189 carries the lowest. Just 4% of residents in Southern 75189 live in blocks above the EPA's 55 dBA threshold, about half the share in Western 75189.
Eastern 75189
8% of people above 55 dBA
Northern 75189
10% of people above 55 dBA
Southern 75189
4% of people above 55 dBA
Western 75189
13% of people above 55 dBA
Western 75189 sounds about 32% louder than Southern 75189 to the human ear, a 4.0 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-30 do you need to be?
I-30 produces an estimated 76 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 4% of 75189 sits under tree canopy (much lighter than most zip codes) and roughly 24% 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.