Noise Levels in Chicago Ridge, IL | Find Quiet Neighborhoods With Our Sound Map
60 dBA
Average noise across Chicago Ridge
Normal conversation an arm’s length away
8,380
Residents above the EPA 55 dBA threshold
68% of Chicago Ridge residents
92 dBA
Loudest residential point
Power saw
This map shows modeled outdoor noise across Chicago Ridge 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 8,380 Chicago Ridge residents, or 67.8%, live above that level. By land area, 68.1% of Chicago Ridge is above 55 dBA.
31.9% below 55 dBA
68.1% above 55 dBA
See how noise in Chicago Ridge compares to similar-sized cities.
Noise by Part of Chicago Ridge
Average noise levels for Chicago Ridge residents, grouped by direction from the center of Chicago Ridge. Northern Chicago Ridge carries the highest population-weighted average; Southern Chicago Ridge carries the lowest. Just 57% of residents in Southern Chicago Ridge live in blocks above the EPA's 55 dBA threshold, about two-thirds of the share in Northern Chicago Ridge.
Central Chicago Ridge
62.8 dBA · Loud
Busy restaurant
Eastern Chicago Ridge
58.0 dBA · Loud
Normal conversation an arm’s length away
Northern Chicago Ridge
65.2 dBA · Loud
Busy restaurant
Southern Chicago Ridge
55.3 dBA · Moderate-loud
Quiet office to normal conversation
Western Chicago Ridge
62.0 dBA · Loud
Busy restaurant
Northern Chicago Ridge sounds about 99% louder than Southern Chicago Ridge to the human ear, a 9.9 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 Tri State Tollway do you need to be?
Tri State Tollway 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
56 dBA
Normal conversation an arm’s length away
660 ft
48 dBA
Quiet office
¼ mile
41 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 9% of Chicago Ridge sits under tree canopy (lighter than most cities) 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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Rail Noise
Active freight rail runs through parts of Chicago Ridge. 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
Chicago Midway International (MDW) sits north of Chicago Ridge. 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 Chicago Ridge, particularly to the south, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Chicago Ridge
The bar chart below shows the share of Chicago Ridge residents in each noise band. About 25% of residents live below the EPA's 55 dBA threshold, and roughly 29% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Chicago Ridge Compares
Chicago Ridge sits the highest among the peer group. Below: how Chicago Ridge's average outdoor noise and share of residents above the EPA threshold compare with Palos Heights, Justice, Hickory Hills, and Midlothian.
Average noise level (dBA)
Chicago Ridge's 60.0 dBA pop-weighted average is the highest among the peer group. Illinois as a whole averages 52.6 dBA and the U.S. averages 52.0 dBA. Both are lower than Chicago Ridge because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 67.8% of Chicago Ridge 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, 68.1% of Chicago Ridge's footprint sits above 55 dBA, against a Illinois average of 29.2% and a national average of 28.1%.
What This Means if You're Moving to Chicago Ridge
- 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 Tri State Tollway 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 9% of Chicago Ridge is under tree cover (lighter than most cities), 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. Chicago Midway International's approach paths concentrate aviation noise to the north. Neighborhoods to the south of downtown show no measurable contribution from the airport.
