Noise Levels in South End Hartford, Hartford, CT | Find Quiet Neighborhoods With Our Sound Map
54 dBA
Average noise across South End Hartford
Quiet office to normal conversation
4,087
Residents above the EPA 55 dBA threshold
36% of South End Hartford residents
67 dBA
Loudest residential point
Highway traffic 50 ft away
This map shows modeled outdoor noise across South End Hartford 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.
Overall
Road
Rail
Aviation
Click the map to explore
35 dBa55 dBa (EPA limit)90+ dBa
3545557090
Quietest (dBA)Loudest
Colorblind friendlyoff
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 4,087 South End Hartford residents, or 35.7%, live above that level. By land area, 35.5% of South End Hartford is above 55 dBA.
Average noise levels for South End Hartford residents, grouped by direction from the center of South End Hartford. Eastern South End Hartford carries the highest population-weighted average; Western South End Hartford carries the lowest. Just 27% of residents in Western South End Hartford live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in Eastern South End Hartford.
Central South End Hartford
53.6 dBA · Moderate-loud
Quiet office to normal conversation
38% of people above 55 dBA
QuietLoud
Eastern South End Hartford
55.1 dBA · Moderate-loud
Quiet office to normal conversation
34% of people above 55 dBA
QuietLoud
Northern South End Hartford
53.9 dBA · Moderate-loud
Quiet office to normal conversation
37% of people above 55 dBA
QuietLoud
Southern South End Hartford
53.4 dBA · Moderate-loud
Quiet office to normal conversation
35% of people above 55 dBA
QuietLoud
Western South End Hartford
51.3 dBA · Moderate
Quiet office to normal conversation
27% of people above 55 dBA
QuietLoud
Eastern South End Hartford sounds about 30% louder than Western South End Hartford to the human ear, a 3.8 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.
How far back from Maple Av do you need to be?
Maple Av produces an estimated 57 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
57 dBA
Normal conversation an arm’s length away
165 ft
43 dBA
Quiet suburban street at night
330 ft
35 dBA
Soft rainfall
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 22% of South End Hartford sits under tree canopy (heavier than most neighborhoods) and roughly 53% 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
Bradley International (BDL) sits north of South End Hartford. 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 South End Hartford, 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 South End Hartford
The bar chart below shows the share of South End Hartford residents in each noise band. About 70% of residents live below the EPA's 55 dBA threshold, and roughly 2% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How South End Hartford Compares
South End Hartford sits at the louder end of the spectrum. Below: how South End Hartford's average outdoor noise and share of residents above the EPA threshold compare with Barry Square, Blue Hills, North East, and Asylum Hill.
Average noise level (dBA)
South End Hartford's 53.6 dBA pop-weighted average is at the louder end of the spectrum. Connecticut as a whole averages 51.3 dBA and the U.S. averages 52.0 dBA. Both are lower than South End Hartford because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 35.7% of South End Hartford 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, 35.5% of South End Hartford's footprint sits above 55 dBA, against a Connecticut average of 27.3% and a national average of 28.1%.
What This Means if You're Moving to South End Hartford
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 Maple Av 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 22% of South End Hartford is under tree cover (heavier 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. Bradley 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
The BestNeighborhood noise model is calibrated against nearly one million federal ground-truth measurements across four states. Road noise is computed from segment-level federal traffic data and propagated outward using physics-based acoustic decay, with attenuation rates that depend on the surrounding land cover.
All inputs are published federal datasets. Block-level noise is computed by combining road, rail, and aviation sound sources in the energy domain, the same physics used in professional environmental noise assessments. Read the full methodology.
