Noise Levels in Csus, Sacramento, CA | Find Quiet Neighborhoods With Our Sound Map
54 dBA
Average noise across Csus
Quiet office to normal conversation
1,440
Residents above the EPA 55 dBA threshold
34% of Csus residents
84 dBA
Loudest residential point
Food blender at arm’s length
This map shows modeled outdoor noise across Csus 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 1,440 Csus residents, or 34.0%, live above that level. By land area, 74.2% of Csus is above 55 dBA.
25.8% below 55 dBA
74.2% above 55 dBA
See how noise in Csus compares to similar-sized neighborhoods.
Noise by Part of Csus
Average noise levels for Csus residents, grouped by direction from the center of Csus. The highest population-weighted average is in central Csus; the lowest is in southeastern Csus, where just 40% of residents live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in the loudest section.
Central Csus
68.3 dBA · Loud
Highway traffic 50 ft away
Southwestern Csus
66.8 dBA · Loud
Highway traffic 50 ft away
Southeastern Csus
57.1 dBA · Moderate-loud
Normal conversation an arm’s length away
To the human ear, noise in central Csus sounds about 117% louder than in southeastern Csus, a 11.2 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 Hwy 16 do you need to be?
State Hwy 16 produces an estimated 78 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
78 dBA
City bus interior
165 ft
64 dBA
Busy restaurant
330 ft
57 dBA
Normal conversation an arm’s length away
660 ft
49 dBA
Quiet office
¼ mile
41 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 2% of Csus sits under tree canopy (much lighter than most neighborhoods) and roughly 65% 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 Csus. 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 Csus. 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 Csus, 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 Csus
The bar chart below shows the share of Csus residents in each noise band. About 70% of residents live below the EPA's 55 dBA threshold, and roughly 30% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Csus Compares
Csus sits at the quieter end of the spectrum. Below: how Csus's average outdoor noise and share of residents above the EPA threshold compare with Gardenland, Upper Land Park, Avondale, and Ben Ali.
Average noise level (dBA)
Csus's 53.9 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 Csus because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 34.0% of Csus 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, 74.2% of Csus'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 Csus
- 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 Hwy 16 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 Csus is under tree cover (much lighter than most neighborhoods), 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. Sacramento International's approach paths concentrate aviation noise to the northwest. Neighborhoods to the southeast of downtown show no measurable contribution from the airport.
