Noise Levels in Warson Woods, MO | Find Quiet Neighborhoods With Our Sound Map

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 1,243 Warson Woods residents, or 57.3%, live above that level. By land area, 67.5% of Warson Woods is above 55 dBA.

See how noise in Warson Woods compares to similar-sized cities.

Noise by Part of Warson Woods

Average noise levels for Warson Woods residents, grouped by direction from the center of Warson Woods. The highest population-weighted average is in eastern Warson Woods; the lowest is in central Warson Woods, where just 43% of residents live in blocks above the EPA's 55 dBA threshold, about two-thirds of the share in the loudest section.

To the human ear, noise in eastern Warson Woods sounds about 21% louder than in central Warson Woods, a 2.8 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.

Airport Noise

St Louis Lambert International (STL) sits north of Warson Woods. 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 Warson Woods, 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 Warson Woods

The bar chart below shows the share of Warson Woods residents in each noise band. About 37% of residents live below the EPA's 55 dBA threshold, and roughly 14% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.

How Warson Woods Compares

Warson Woods sits the lowest among the peer group. Below: how Warson Woods's average outdoor noise and share of residents above the EPA threshold compare with St. George, Marlborough, Pagedale, and Bel-Ridge.

Average noise level (dBA)

Warson Woods's 56.5 dBA pop-weighted average is the lowest among the peer group. Missouri as a whole averages 53.9 dBA and the U.S. averages 52.0 dBA. Both are lower than Warson Woods because most of either area is rural land away from major roads.

Share of residents above 55 dBA

About 57.3% of Warson Woods 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, 67.5% of Warson Woods's footprint sits above 55 dBA, against a Missouri average of 32.5% and a national average of 28.1%.

What This Means if You're Moving to Warson Woods

• 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 Woodlawn Ave 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 47% of Warson Woods is under tree cover (heavier than most cities), and the dominant land cover is low-density developed open space. 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. St Louis Lambert International's approach paths concentrate aviation noise to the north. Neighborhoods to the south of downtown show no measurable contribution from the airport.

Sources & Methodology