Noise Levels in Avondale, Sacramento, CA | Find Quiet Neighborhoods With Our Sound Map
52 dBA
Average noise across Avondale
Quiet office to normal conversation
1,018
Residents above the EPA 55 dBA threshold
26% of Avondale residents
62 dBA
Loudest residential point
Busy restaurant
This map shows modeled outdoor noise across Avondale 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 1,018 Avondale residents, or 25.9%, live above that level. By land area, 29.9% of Avondale is above 55 dBA.
70.1% below 55 dBA
29.9% above 55 dBA
See how noise in Avondale compares to similar-sized neighborhoods.
Noise by Part of Avondale
Average noise levels for Avondale residents, grouped by direction from the center of Avondale. The highest population-weighted average is in northeastern Avondale; the lowest is in central Avondale, where just 28% of residents live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in the loudest section.
Northeastern Avondale
55.0 dBA · Moderate-loud
Quiet office to normal conversation
Southeastern Avondale
55.0 dBA · Moderate-loud
Quiet office to normal conversation
Southwestern Avondale
54.2 dBA · Moderate-loud
Quiet office to normal conversation
Central Avondale
53.2 dBA · Moderate-loud
Quiet office to normal conversation
To the human ear, noise in northeastern Avondale sounds about 13% louder than in central Avondale, a 1.8 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 62 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
62 dBA
Busy restaurant
165 ft
47 dBA
Quiet office
330 ft
39 dBA
Soft rainfall
660 ft
35 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 2% of Avondale sits under tree canopy (much lighter than most neighborhoods) and roughly 37% 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 Avondale. 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
Sacramento International (SMF) sits northwest of Avondale. The U.S. Department of Transportation models aviation noise around this airport from federal traffic data, 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 65 dBA on the map's Overall layer. Blocks on the opposite side of Avondale, 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 Avondale
The bar chart below shows the share of Avondale residents in each noise band. About 79% 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 Avondale Compares
Avondale sits the lowest among the peer group. Below: how Avondale's average outdoor noise and share of residents above the EPA threshold compare with Central Oak Park, Csus, Glen Elder, and Curtis Park.
Average noise level (dBA)
Avondale's 52.5 dBA pop-weighted average is the lowest among the peer group. California as a whole averages 54.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Avondale because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 25.9% of Avondale 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, 29.9% of Avondale'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 Avondale
- 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 2% of Avondale is under tree cover (much lighter than most neighborhoods), 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. Sacramento International's approach paths concentrate aviation noise to the northwest. Neighborhoods to the southeast of downtown show no measurable contribution from the airport.
