Noise Levels in 92701, CA | Find Quiet Neighborhoods With Our Sound Map
58 dBA
Average noise across 92701
Normal conversation an arm’s length away
25,908
Residents above the EPA 55 dBA threshold
65% of 92701 residents
90 dBA
Loudest residential point
Lawnmower at 1 m
This map shows modeled outdoor noise across 92701 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 25,908 92701 residents, or 64.9%, live above that level. By land area, 65.9% of 92701 is above 55 dBA.
34.1% below 55 dBA
65.9% above 55 dBA
See how noise in 92701 compares to similar-sized zip codes.
Noise by Part of 92701
Average noise levels for 92701 residents, grouped by direction from the center of 92701. The highest population-weighted average is in northeastern 92701; the lowest is in southern 92701, where just 44% of residents live in blocks above the EPA's 55 dBA threshold, about two-thirds of the share in the loudest section.
Northeastern 92701
71.1 dBA · Loud
City bus interior
Eastern 92701
69.0 dBA · Loud
Highway traffic 50 ft away
Western 92701
57.6 dBA · Moderate-loud
Normal conversation an arm’s length away
Southeastern 92701
55.6 dBA · Moderate-loud
Quiet office to normal conversation
Southern 92701
54.2 dBA · Moderate-loud
Quiet office to normal conversation
To the human ear, noise in northeastern 92701 sounds about 223% louder than in southern 92701, a 16.9 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-5 do you need to be?
I-5 produces an estimated 82 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
82 dBA
Food blender at arm’s length
165 ft
68 dBA
Highway traffic 50 ft away
330 ft
61 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
37 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 4% of 92701 sits under tree canopy (much lighter than most zip codes) and roughly 68% 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 92701. 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
John Wayne/Orange County (SNA) sits south of 92701. 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 45 dBA on the map's Overall layer. Blocks on the opposite side of 92701, particularly to the north, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across 92701
The bar chart below shows the share of 92701 residents in each noise band. About 35% of residents live below the EPA's 55 dBA threshold, and roughly 27% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How 92701 Compares
92701 sits the highest among the peer group. Below: how 92701's average outdoor noise and share of residents above the EPA threshold compare with 92705, 92867, 92843, and 92707.
Average noise level (dBA)
92701's 57.6 dBA pop-weighted average is the highest among the peer group. California as a whole averages 54.0 dBA and the U.S. averages 52.0 dBA. Both are lower than 92701 because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 64.9% of 92701 residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's more than any of its peer group. Measured by land area instead, 65.9% of 92701'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 92701
- 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-5 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 4% of 92701 is under tree cover (much 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. John Wayne/Orange County's approach paths concentrate aviation noise to the south. Neighborhoods to the north of downtown show no measurable contribution from the airport.
