Noise Levels in Winnona Park, Decatur, GA | Find Quiet Neighborhoods With Our Sound Map
54 dBA
Average noise across Winnona Park
Quiet office to normal conversation
1,312
Residents above the EPA 55 dBA threshold
36% of Winnona Park residents
63 dBA
Loudest residential point
Busy restaurant
This map shows modeled outdoor noise across Winnona Park 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 1,312 Winnona Park residents, or 36.2%, live above that level. By land area, 36.3% of Winnona Park is above 55 dBA.
63.7% below 55 dBA
36.3% above 55 dBA
See how noise in Winnona Park compares to similar-sized neighborhoods.
Noise by Part of Winnona Park
Average noise levels for Winnona Park residents, grouped by direction from the center of Winnona Park. The highest population-weighted average is in northeastern Winnona Park; the lowest is in southwestern Winnona Park, where just 26% of residents live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in the loudest section.
Northeastern Winnona Park
55.5 dBA · Moderate-loud
Quiet office to normal conversation
Northern Winnona Park
55.1 dBA · Moderate-loud
Quiet office to normal conversation
Southeastern Winnona Park
54.6 dBA · Moderate-loud
Quiet office to normal conversation
Central Winnona Park
54.5 dBA · Moderate-loud
Quiet office to normal conversation
Southwestern Winnona Park
54.0 dBA · Moderate-loud
Quiet office to normal conversation
To the human ear, noise in northeastern Winnona Park sounds about 11% louder than in southwestern Winnona Park, a 1.5 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 63 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.
At source
63 dBA
Busy restaurant
165 ft
51 dBA
Quiet office to normal conversation
330 ft
44 dBA
Quiet suburban street at night
660 ft
38 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 42% of Winnona Park sits under tree canopy (much heavier than most neighborhoods) and roughly 25% 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.
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Airport Noise
Hartsfield/Jackson Atlanta International (ATL) sits southwest of Winnona Park. The U.S. Department of Transportation measures aviation noise around this airport directly, and the model uses those federal measurements rather than synthetic predictions.
Blocks under the approach and departure paths carry combined road-plus-aviation noise, with some exceeding 75 dBA on the map's Overall layer. Blocks on the opposite side of Winnona Park, particularly to the northeast, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Winnona Park
The bar chart below shows the share of Winnona Park residents in each noise band. About 66% of residents live below the EPA's 55 dBA threshold, and roughly 0% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Winnona Park Compares
Winnona Park sits the lowest among the peer group. Below: how Winnona Park's average outdoor noise and share of residents above the EPA threshold compare with Five Points, University Center, Poncey-Highland, and Adair Park.
Average noise level (dBA)
Winnona Park's 54.5 dBA pop-weighted average is the lowest among the peer group. Georgia as a whole averages 51.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Winnona Park because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 36.2% of Winnona Park residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's fewer than any of its peer group. Measured by land area instead, 36.3% of Winnona Park's footprint sits above 55 dBA, against a Georgia average of 22.6% and a national average of 28.1%.
What This Means if You're Moving to Winnona Park
- Distance from highways matters more than the neighborhood name. Two homes in the same zip code can differ by 20 dBA if one sits 100 meters from and the other 500 meters away. The model captures this at 100-meter resolution, so noise exposure changes block by block.
- Tree canopy can help reduce modeled noise exposure. Roughly 42% of Winnona Park is under tree cover (much heavier than most neighborhoods), and the dominant land cover is low-density developed open space. Both are measured from federal USDA Forest Service and USGS satellite imagery at 30-meter resolution. Streets with 60% or higher canopy show 3 to 5 dBA lower noise than comparable streets with bare ground or pavement, which is why the per-place decay rate above already accounts for it.
- Airport noise is directional. Hartsfield/Jackson Atlanta International's approach paths concentrate aviation noise to the southwest. Neighborhoods to the northeast of downtown show no measurable contribution from the airport.
