Noise Levels in Annandale, VA | Find Quiet Neighborhoods With Our Sound Map
57 dBA
Average noise across Annandale
Normal conversation an arm’s length away
24,047
Residents above the EPA 55 dBA threshold
43% of Annandale residents
84 dBA
Loudest residential point
Food blender at arm’s length
This map shows modeled outdoor noise across Annandale 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 24,047 Annandale residents, or 42.7%, live above that level. By land area, 49.9% of Annandale is above 55 dBA.
Average noise levels for Annandale residents, grouped by direction from the center of Annandale. Central Annandale carries the highest population-weighted average; Eastern Annandale carries the lowest. Just 36% of residents in Eastern Annandale live in blocks above the EPA's 55 dBA threshold, about two-thirds of the share in Central Annandale.
Central Annandale
63.1 dBA · Loud
Busy restaurant
56% of people above 55 dBA
QuietLoud
Eastern Annandale
55.4 dBA · Moderate-loud
Quiet office to normal conversation
36% of people above 55 dBA
QuietLoud
Northern Annandale
57.9 dBA · Moderate-loud
Normal conversation an arm’s length away
44% of people above 55 dBA
QuietLoud
Southern Annandale
58.0 dBA · Loud
Normal conversation an arm’s length away
52% of people above 55 dBA
QuietLoud
Western Annandale
55.7 dBA · Moderate-loud
Quiet office to normal conversation
40% of people above 55 dBA
QuietLoud
Central Annandale sounds about 71% louder than Eastern Annandale to the human ear, a 7.7 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 I-495 do you need to be?
I-495 produces an estimated 80 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
80 dBA
City bus interior
165 ft
68 dBA
Highway traffic 50 ft away
330 ft
61 dBA
Busy restaurant
660 ft
55 dBA
Quiet office to normal conversation
¼ mile
48 dBA
Quiet office
½ mile
41 dBA
Quiet suburban street at night
Calculated from the model's calibrated attenuation formula. About 50% of Annandale sits under tree canopy (heavier than most cities) and roughly 26% 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 east of Annandale. 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 Annandale, 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 Annandale
The bar chart below shows the share of Annandale residents in each noise band. About 31% of residents live below the EPA's 55 dBA threshold, and roughly 23% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Annandale Compares
Annandale sits at the quieter end of the spectrum. Below: how Annandale's average outdoor noise and share of residents above the EPA threshold compare with Falls Church, Springfield, Reston, and Burke.
Average noise level (dBA)
Annandale's 57.0 dBA pop-weighted average is at the quieter end of the spectrum. Virginia as a whole averages 52.8 dBA and the U.S. averages 52.0 dBA. Both are lower than Annandale because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 42.7% of Annandale 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, 49.9% of Annandale's footprint sits above 55 dBA, against a Virginia average of 30.0% and a national average of 28.1%.
What This Means if You're Moving to Annandale
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 I-495 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 50% of Annandale is under tree cover (heavier than most 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. Ronald Reagan Washington Ntl's approach paths concentrate aviation noise to the east. Neighborhoods to the west 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.
