Noise Levels in Rockland, DE | Find Quiet Neighborhoods With Our Sound Map
46 dBA
Average noise across Rockland
Quiet suburban street at night
10
Residents above the EPA 55 dBA threshold
5% of Rockland residents
63 dBA
Loudest residential point
Busy restaurant
This map shows modeled outdoor noise across Rockland 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 10 Rockland residents, or 5.1%, live above that level. By land area, 5.5% of Rockland is above 55 dBA.
94.5% below 55 dBA
5.5% above 55 dBA
See how noise in Rockland compares to similar-sized cities.
Noise by Part of Rockland
Average noise levels for Rockland residents, grouped by direction from the center of Rockland. Western Rockland carries the highest population-weighted average; Central Rockland carries the lowest. Just 2% of residents in Central Rockland live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Western Rockland.
Central Rockland
42.7 dBA · Quiet
Quiet suburban street at night
Eastern Rockland
47.4 dBA · Mostly quiet
Quiet office
Northern Rockland
49.7 dBA · Mostly quiet
Quiet office
Western Rockland
51.6 dBA · Moderate
Quiet office to normal conversation
Western Rockland sounds about 85% louder than Central Rockland to the human ear, a 8.9 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 do you need to be?
produces an estimated 63 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
63 dBA
Busy restaurant
165 ft
52 dBA
Quiet office to normal conversation
330 ft
46 dBA
Quiet office
660 ft
41 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 41% of Rockland sits under tree canopy (heavier than most cities) and roughly 5% 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
Philadelphia International (PHL) sits east of Rockland. The U.S. Department of Transportation measures aviation noise around this airport directly, 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 75 dBA on the map's Overall layer. Blocks on the opposite side of Rockland, particularly to the west, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Rockland
The bar chart below shows the share of Rockland residents in each noise band. About 100% of residents live below the EPA's 55 dBA threshold, and roughly 0% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Rockland Compares
Rockland sits at the quieter end of the spectrum. Below: how Rockland's average outdoor noise and share of residents above the EPA threshold compare with Winterthur, Ardentown, Arden, and Woodland Beach.
Average noise level (dBA)
Rockland's 45.8 dBA pop-weighted average is at the quieter end of the spectrum. Delaware as a whole averages 53.5 dBA and the U.S. averages 52.0 dBA. Both are lower than Rockland because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 5.1% of Rockland residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's fewer than any of its peer group. Measured by land area instead, 5.5% of Rockland's footprint sits above 55 dBA, against a Delaware average of 38.3% and a national average of 28.1%.
What This Means if You're Moving to Rockland
- 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 41% of Rockland is under tree cover (heavier than most cities), and the dominant land cover is pasture / hay. 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. Philadelphia International's approach paths concentrate aviation noise to the east. Neighborhoods to the west of downtown show no measurable contribution from the airport.
