Noise Levels in Mid City-Santa Ana, Santa Ana, CA | Find Quiet Neighborhoods With Our Sound Map
55 dBA
Average noise across Mid City-Santa Ana
Quiet office to normal conversation
4,216
Residents above the EPA 55 dBA threshold
56% of Mid City-Santa Ana residents
65 dBA
Loudest residential point
Busy restaurant
This map shows modeled outdoor noise across Mid City-Santa Ana 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 4,216 Mid City-Santa Ana residents, or 56.1%, live above that level. By land area, 66.1% of Mid City-Santa Ana is above 55 dBA.
33.9% below 55 dBA
66.1% above 55 dBA
See how noise in Mid City-Santa Ana compares to similar-sized neighborhoods.
Noise by Part of Mid City-Santa Ana
Average noise levels for Mid City-Santa Ana residents, grouped by direction from the center of Mid City-Santa Ana. Eastern Mid City-Santa Ana carries the highest population-weighted average; Western Mid City-Santa Ana carries the lowest. Just 53% of residents in Western Mid City-Santa Ana live in blocks above the EPA's 55 dBA threshold, about two-thirds of the share in Eastern Mid City-Santa Ana.
Central Mid City-Santa Ana
54.7 dBA · Moderate-loud
Quiet office to normal conversation
Eastern Mid City-Santa Ana
56.1 dBA · Moderate-loud
Normal conversation an arm’s length away
Western Mid City-Santa Ana
54.0 dBA · Moderate-loud
Quiet office to normal conversation
Eastern Mid City-Santa Ana sounds about 16% louder than Western Mid City-Santa Ana to the human ear, a 2.1 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 do you need to be?
produces an estimated 65 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
65 dBA
Busy restaurant
165 ft
51 dBA
Quiet office to normal conversation
330 ft
43 dBA
Quiet suburban street at night
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 8% of Mid City-Santa Ana sits under tree canopy (lighter than most neighborhoods) and roughly 62% 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
John Wayne/Orange County (SNA) sits south of Mid City-Santa Ana. 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 Mid City-Santa Ana, 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 Mid City-Santa Ana
The bar chart below shows the share of Mid City-Santa Ana residents in each noise band. About 38% of residents live below the EPA's 55 dBA threshold, and roughly 1% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Mid City-Santa Ana Compares
Mid City-Santa Ana sits at the quieter end of the spectrum. Below: how Mid City-Santa Ana's average outdoor noise and share of residents above the EPA threshold compare with Henninger Park, Pico-Lowell, Sandpointe, and Townsend-Raitt.
Average noise level (dBA)
Mid City-Santa Ana's 54.9 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 Mid City-Santa Ana because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 56.1% of Mid City-Santa Ana 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, 66.1% of Mid City-Santa Ana'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 Mid City-Santa Ana
- 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 8% of Mid City-Santa Ana is under tree cover (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. 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.
