Noise Levels in Charlotte Hall, MD | Find Quiet Neighborhoods With Our Sound Map
43 dBA
Average noise across Charlotte Hall
Quiet suburban street at night
109
Residents above the EPA 55 dBA threshold
3% of Charlotte Hall residents
69 dBA
Loudest residential point
Highway traffic 50 ft away
This map shows modeled outdoor noise across Charlotte Hall 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 109 Charlotte Hall residents, or 2.7%, live above that level. By land area, 13.7% of Charlotte Hall is above 55 dBA.
86.3% below 55 dBA
13.7% above 55 dBA
See how noise in Charlotte Hall compares to similar-sized cities.
Noise by Part of Charlotte Hall
Average noise levels for Charlotte Hall residents, grouped by direction from the center of Charlotte Hall. The highest population-weighted average is in northeastern Charlotte Hall; the lowest is in northern Charlotte Hall, where just 1% of residents live in blocks above the EPA's 55 dBA threshold, a fifth of the share in the loudest section.
Northeastern Charlotte Hall
49.3 dBA · Mostly quiet
Quiet office
Southeastern Charlotte Hall
48.9 dBA · Mostly quiet
Quiet office
Western Charlotte Hall
42.4 dBA · Quiet
Quiet suburban street at night
Southwestern Charlotte Hall
41.6 dBA · Quiet
Quiet suburban street at night
Northern Charlotte Hall
41.3 dBA · Quiet
Quiet suburban street at night
To the human ear, noise in northeastern Charlotte Hall sounds about 74% louder than in northern Charlotte Hall, a 8.0 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 do you need to be?
produces an estimated 69 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
69 dBA
Highway traffic 50 ft away
165 ft
57 dBA
Normal conversation an arm’s length away
330 ft
50 dBA
Quiet office
660 ft
43 dBA
Quiet suburban street at night
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 39% of Charlotte Hall sits under tree canopy (about average for cities) and roughly 8% 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
Ronald Reagan Washington Ntl (DCA) sits northwest of Charlotte Hall. 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 Charlotte Hall, particularly to the southeast, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Charlotte Hall
The bar chart below shows the share of Charlotte Hall residents in each noise band. About 99% 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 Charlotte Hall Compares
Charlotte Hall sits the lowest among the peer group. Below: how Charlotte Hall's average outdoor noise and share of residents above the EPA threshold compare with Port Republic, Hughesville, Sunderland, and Bryantown.
Average noise level (dBA)
Charlotte Hall's 43.2 dBA pop-weighted average is the lowest among the peer group. Maryland as a whole averages 52.3 dBA and the U.S. averages 52.0 dBA. Both are lower than Charlotte Hall because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 2.7% of Charlotte Hall 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, 13.7% of Charlotte Hall'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 Charlotte Hall
- 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 39% of Charlotte Hall is under tree cover (about average for cities), and the dominant land cover is low-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.
- Airport noise is directional. Ronald Reagan Washington Ntl's approach paths concentrate aviation noise to the northwest. Neighborhoods to the southeast of downtown show no measurable contribution from the airport.
