Noise Levels in Mountain View, NC | Find Quiet Neighborhoods With Our Sound Map
50 dBA
Average noise across Mountain View
Quiet office
19
Residents above the EPA 55 dBA threshold
7% of Mountain View residents
81 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Mountain View 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 19 Mountain View residents, or 6.7%, live above that level. By land area, 24.4% of Mountain View is above 55 dBA.
75.6% below 55 dBA
24.4% above 55 dBA
See how noise in Mountain View compares to similar-sized cities.
Noise by Part of Mountain View
Average noise levels for Mountain View residents, grouped by direction from the center of Mountain View. Southern Mountain View carries the highest population-weighted average; Western Mountain View carries the lowest. Just 1% of residents in Western Mountain View live in blocks above the EPA's 55 dBA threshold, a third of the share in Southern Mountain View.
Central Mountain View
46.5 dBA · Mostly quiet
Quiet office
Eastern Mountain View
49.9 dBA · Mostly quiet
Quiet office
Northern Mountain View
47.9 dBA · Mostly quiet
Quiet office
Southern Mountain View
52.1 dBA · Moderate
Quiet office to normal conversation
Western Mountain View
39.7 dBA · Quiet
Soft rainfall
Southern Mountain View sounds about 136% louder than Western Mountain View to the human ear, a 12.4 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 Sen Marshall Arthur Rauch Hwy do you need to be?
Sen Marshall Arthur Rauch Hwy produces an estimated 71 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
71 dBA
Highway traffic 50 ft away
165 ft
59 dBA
Normal conversation an arm’s length away
330 ft
52 dBA
Quiet office to normal conversation
660 ft
45 dBA
Quiet suburban street at night
¼ mile
38 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 39% of Mountain View sits under tree canopy (about average for cities) and roughly 1% 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
Charlotte/Douglas International (CLT) sits east of Mountain View. 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 Mountain View, particularly to the west, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Mountain View
The bar chart below shows the share of Mountain View residents in each noise band. About 69% of residents live below the EPA's 55 dBA threshold, and roughly 3% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Mountain View Compares
Mountain View sits the highest among the peer group. Below: how Mountain View's average outdoor noise and share of residents above the EPA threshold compare with Duan, Reepsville, Delight, and Lattimore.
Average noise level (dBA)
Mountain View's 50.1 dBA pop-weighted average is the highest among the peer group. North Carolina as a whole averages 49.7 dBA and the U.S. averages 52.0 dBA. Both are lower than Mountain View because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 6.7% of Mountain View residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's in the middle of its peer group. Measured by land area instead, 24.4% of Mountain View's footprint sits above 55 dBA, against a North Carolina average of 22.6% and a national average of 28.1%.
What This Means if You're Moving to Mountain View
- 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 Sen Marshall Arthur Rauch Hwy 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 Mountain View is under tree cover (about average for cities), and the dominant land cover is pasture / hay. 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. Charlotte/Douglas International's approach paths concentrate aviation noise to the east. Neighborhoods to the west of downtown show no measurable contribution from the airport.
