Noise Levels in Sayre Park, Bethlehem, PA | Find Quiet Neighborhoods With Our Sound Map
56 dBA
Average noise across Sayre Park
Normal conversation an arm’s length away
2,588
Residents above the EPA 55 dBA threshold
54% of Sayre Park residents
73 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Sayre 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.
Overall
Road
Rail
Aviation
Click the map to explore
35 dBa55 dBa (EPA limit)90+ dBa
3545557090
Quietest (dBA)Loudest
Colorblind friendlyoff
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 2,588 Sayre Park residents, or 53.8%, live above that level. By land area, 55.2% of Sayre Park is above 55 dBA.
Average noise levels for Sayre Park residents, grouped by direction from the center of Sayre Park. Western Sayre Park carries the highest population-weighted average; Southern Sayre Park carries the lowest. Just 16% of residents in Southern Sayre Park live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Western Sayre Park.
Central Sayre Park
56.4 dBA · Moderate-loud
Normal conversation an arm’s length away
63% of people above 55 dBA
QuietLoud
Eastern Sayre Park
54.5 dBA · Moderate-loud
Quiet office to normal conversation
18% of people above 55 dBA
QuietLoud
Northern Sayre Park
58.0 dBA · Loud
Normal conversation an arm’s length away
100% of people above 55 dBA
QuietLoud
Southern Sayre Park
53.7 dBA · Moderate-loud
Quiet office to normal conversation
16% of people above 55 dBA
QuietLoud
Western Sayre Park
60.0 dBA · Loud
Normal conversation an arm’s length away
87% of people above 55 dBA
QuietLoud
Western Sayre Park sounds about 55% louder than Southern Sayre Park to the human ear, a 6.3 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 73 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 quiet suburban street at night.
At source
73 dBA
City bus interior
165 ft
62 dBA
Busy restaurant
330 ft
55 dBA
Quiet office to normal conversation
660 ft
49 dBA
Quiet office
¼ mile
42 dBA
Quiet suburban street at night
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 40% of Sayre Park sits under tree canopy (much heavier than most neighborhoods) and roughly 43% 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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How Noise Is Distributed Across Sayre Park
The bar chart below shows the share of Sayre Park residents in each noise band. About 36% of residents live below the EPA's 55 dBA threshold, and roughly 28% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Sayre Park Compares
Sayre Park sits the lowest among the peer group. Below: how Sayre Park's average outdoor noise and share of residents above the EPA threshold compare with West Bethlehem, South Side, Fairview, and South Poplar.
Average noise level (dBA)
Sayre Park's 56.3 dBA pop-weighted average is the lowest among the peer group. Pennsylvania as a whole averages 52.9 dBA and the U.S. averages 52.0 dBA. Both are lower than Sayre Park because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 53.8% of Sayre 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, 55.2% of Sayre Park's footprint sits above 55 dBA, against a Pennsylvania average of 33.5% and a national average of 28.1%.
What This Means if You're Moving to Sayre 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 40% of Sayre Park is under tree cover (much heavier than most neighborhoods), and the dominant land cover is medium-intensity developed land. 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.
Sources & Methodology
The BestNeighborhood noise model is calibrated against nearly one million federal ground-truth measurements across four states. Road noise is computed from segment-level federal traffic data and propagated outward using physics-based acoustic decay, with attenuation rates that depend on the surrounding land cover.
All inputs are published federal datasets. Block-level noise is computed by combining road, rail, and aviation sound sources in the energy domain, the same physics used in professional environmental noise assessments. Read the full methodology.
