This map shows modeled outdoor noise across 33812 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 2,171 33812 residents, or 17.2%, live above that level. By land area, 32.7% of 33812 is above 55 dBA.
See how noise in 33812 compares to similar-sized zip codes.
Noise by Part of 33812
Average noise levels for 33812 residents, grouped by direction from the center of 33812. Southern 33812 carries the highest population-weighted average; Central 33812 carries the lowest. Just 26% of residents in Central 33812 live in blocks above the EPA's 55 dBA threshold, roughly the same as the share in Southern 33812.
Central 33812
26% of people above 55 dBA
Eastern 33812
18% of people above 55 dBA
Northern 33812
23% of people above 55 dBA
Southern 33812
13% of people above 55 dBA
Western 33812
15% of people above 55 dBA
Southern 33812 sounds about 4% louder than Central 33812 to the human ear, a 0.6 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 Polk Pkwy do you need to be?
Polk Pkwy produces an estimated 75 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 13% of 33812 sits under tree canopy (lighter than most zip codes) and roughly 31% 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.