Noise Levels in 94553, CA | Find Quiet Neighborhoods With Our Sound Map
55 dBA
Average noise across 94553
Quiet office to normal conversation
17,099
Residents above the EPA 55 dBA threshold
39% of 94553 residents
93 dBA
Loudest residential point
Power saw
This map shows modeled outdoor noise across 94553 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 17,099 94553 residents, or 38.9%, live above that level. By land area, 48.5% of 94553 is above 55 dBA.
Average noise levels for 94553 residents, grouped by direction from the center of 94553. Northern 94553 carries the highest population-weighted average; Southern 94553 carries the lowest. Just 16% of residents in Southern 94553 live in blocks above the EPA's 55 dBA threshold, a third of the share in Northern 94553.
Central 94553
54.5 dBA · Moderate-loud
Quiet office to normal conversation
39% of people above 55 dBA
QuietLoud
Eastern 94553
56.5 dBA · Moderate-loud
Normal conversation an arm’s length away
46% of people above 55 dBA
QuietLoud
Northern 94553
56.5 dBA · Moderate-loud
Normal conversation an arm’s length away
49% of people above 55 dBA
QuietLoud
Southern 94553
49.5 dBA · Mostly quiet
Quiet office
16% of people above 55 dBA
QuietLoud
Western 94553
55.0 dBA · Moderate-loud
Quiet office to normal conversation
39% of people above 55 dBA
QuietLoud
Northern 94553 sounds about 62% louder than Southern 94553 to the human ear, a 7.0 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 I-680 do you need to be?
I-680 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 suburban street at night.
At source
80 dBA
City bus interior
165 ft
67 dBA
Highway traffic 50 ft away
330 ft
60 dBA
Normal conversation an arm’s length away
660 ft
53 dBA
Quiet office to normal conversation
¼ mile
45 dBA
Quiet suburban street at night
½ mile
38 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 10% of 94553 sits under tree canopy (lighter than most zip codes) and roughly 44% 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.
-->
Rail Noise
Active freight rail runs through parts of 94553. 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
San Francisco International (SFO) sits southwest of 94553. 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 55 dBA on the map's Overall layer. Blocks on the opposite side of 94553, particularly to the northeast, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across 94553
The bar chart below shows the share of 94553 residents in each noise band. About 56% 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 94553 Compares
94553 sits at the quieter end of the spectrum. Below: how 94553's average outdoor noise and share of residents above the EPA threshold compare with 94521, 94520, 94523, and 94591.
Average noise level (dBA)
94553's 54.7 dBA pop-weighted average is at the quieter end of the spectrum. California as a whole averages 54.0 dBA and the U.S. averages 52.0 dBA. Both are lower than 94553 because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 38.9% of 94553 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, 48.5% of 94553's footprint sits above 55 dBA, against a California average of 36.0% and a national average of 28.1%.
What This Means if You're Moving to 94553
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-680 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 10% of 94553 is under tree cover (lighter than most zip codes), 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.
Airport noise is directional. San Francisco International's approach paths concentrate aviation noise to the southwest. Neighborhoods to the northeast 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.
