Noise Levels in Point Of Rocks, MD | Find Quiet Neighborhoods With Our Sound Map
55 dBA
Average noise across Point Of Rocks
Quiet office to normal conversation
696
Residents above the EPA 55 dBA threshold
34% of Point Of Rocks residents
84 dBA
Loudest residential point
Food blender at arm’s length
This map shows modeled outdoor noise across Point Of Rocks 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 696 Point Of Rocks residents, or 33.7%, live above that level. By land area, 33.5% of Point Of Rocks is above 55 dBA.
Average noise levels for Point Of Rocks residents, grouped by direction from the center of Point Of Rocks. Western Point Of Rocks carries the highest population-weighted average; Northern Point Of Rocks carries the lowest. Just 2% of residents in Northern Point Of Rocks live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Western Point Of Rocks.
Central Point Of Rocks
58.1 dBA · Loud
Normal conversation an arm’s length away
59% of people above 55 dBA
QuietLoud
Eastern Point Of Rocks
54.4 dBA · Moderate-loud
Quiet office to normal conversation
15% of people above 55 dBA
QuietLoud
Northern Point Of Rocks
45.4 dBA · Mostly quiet
Quiet suburban street at night
2% of people above 55 dBA
QuietLoud
Southern Point Of Rocks
57.2 dBA · Moderate-loud
Normal conversation an arm’s length away
45% of people above 55 dBA
QuietLoud
Western Point Of Rocks
62.6 dBA · Loud
Busy restaurant
13% of people above 55 dBA
QuietLoud
Western Point Of Rocks sounds about 229% louder than Northern Point Of Rocks to the human ear, a 17.2 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 84 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 office.
At source
84 dBA
Food blender at arm’s length
165 ft
71 dBA
Highway traffic 50 ft away
330 ft
63 dBA
Busy restaurant
660 ft
56 dBA
Quiet office to normal conversation
¼ mile
48 dBA
Quiet office
½ mile
41 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 35% of Point Of Rocks sits under tree canopy (about average for cities) and roughly 16% 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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Rail Noise
Active freight rail runs through parts of Point Of Rocks. For most blocks the rail-only contribution is small. Combined road-plus-rail noise rarely exceeds road noise on its own. The exceptions are the handful of blocks within roughly a quarter mile of the right-of-way during pass-through hours.
Use the Rail toggle on the map above to isolate rail's contribution from road and aviation.
Airport Noise
Washington Dulles International (IAD) sits south of Point Of Rocks. 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 45 dBA on the map's Overall layer. Blocks on the opposite side of Point Of Rocks, particularly to the north, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Point Of Rocks
The bar chart below shows the share of Point Of Rocks residents in each noise band. About 53% of residents live below the EPA's 55 dBA threshold, and roughly 16% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Point Of Rocks Compares
Point Of Rocks sits the highest among the peer group. Below: how Point Of Rocks's average outdoor noise and share of residents above the EPA threshold compare with Knoxville, Dickerson, Woodsboro, and Adamstown.
Average noise level (dBA)
Point Of Rocks's 55.2 dBA pop-weighted average is the highest among the peer group. Maryland as a whole averages 52.3 dBA and the U.S. averages 52.0 dBA. Both are lower than Point Of Rocks because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 33.7% of Point Of Rocks residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's more than any of its peer group. Measured by land area instead, 33.5% of Point Of Rocks's footprint sits above 55 dBA, against a Maryland average of 32.9% and a national average of 28.1%.
What This Means if You're Moving to Point Of Rocks
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 35% of Point Of Rocks is under tree cover (about average for cities), 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. Washington Dulles International's approach paths concentrate aviation noise to the south. Neighborhoods to the north of downtown show no measurable contribution from the airport.
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.
