Noise Levels in Covell Park, Davis, CA | Find Quiet Neighborhoods With Our Sound Map
52 dBA
Average noise across Covell Park
Quiet office to normal conversation
937
Residents above the EPA 55 dBA threshold
17% of Covell Park residents
60 dBA
Loudest residential point
Normal conversation an arm’s length away
This map shows modeled outdoor noise across Covell Park 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 937 Covell Park residents, or 17.3%, live above that level. By land area, 21.4% of Covell Park is above 55 dBA.
78.6% below 55 dBA
21.4% above 55 dBA
See how noise in Covell Park compares to similar-sized neighborhoods.
Noise by Part of Covell Park
Average noise levels for Covell Park residents, grouped by direction from the center of Covell Park. The highest population-weighted average is in southwestern Covell Park; the lowest is in central Covell Park, where just 17% of residents live in blocks above the EPA's 55 dBA threshold, a third of the share in the loudest section.
Southwestern Covell Park
67.4 dBA · Loud
Highway traffic 50 ft away
Eastern Covell Park
53.7 dBA · Moderate-loud
Quiet office to normal conversation
Western Covell Park
53.2 dBA · Moderate-loud
Quiet office to normal conversation
Central Covell Park
52.3 dBA · Moderate
Quiet office to normal conversation
To the human ear, noise in southwestern Covell Park sounds about 185% louder than in central Covell Park, a 15.1 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 State Rte 113 do you need to be?
State Rte 113 produces an estimated 53 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
53 dBA
Quiet office to normal conversation
165 ft
41 dBA
Soft rainfall
330 ft
35 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 14% of Covell Park sits under tree canopy (about average for neighborhoods) and roughly 45% 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
Sacramento International (SMF) sits northeast of Covell Park. 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 Covell Park, particularly to the southwest, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Covell Park
The bar chart below shows the share of Covell Park residents in each noise band. About 98% 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 Covell Park Compares
Covell Park sits at the quieter end of the spectrum. Below: how Covell Park's average outdoor noise and share of residents above the EPA threshold compare with Willowcreek, Northwest Village, Aspen, and Bryte.
Average noise level (dBA)
Covell Park's 51.9 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 Covell Park because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 17.3% of Covell Park 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, 21.4% of Covell Park'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 Covell Park
- 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 State Rte 113 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 14% of Covell Park is under tree cover (about average for 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 northeast. Neighborhoods to the southwest of downtown show no measurable contribution from the airport.
