Noise Levels in Worcester County, MD | Find Quiet Neighborhoods With Our Sound Map
50 dBA
Average noise across Worcester County
Quiet office
8,922
Residents above the EPA 55 dBA threshold
19% of Worcester County residents
88 dBA
Loudest residential point
Lawnmower at 1 m
This map shows modeled outdoor noise across Worcester County 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 8,922 Worcester County residents, or 18.6%, live above that level. By land area, 24.9% of Worcester County is above 55 dBA.
75.1% below 55 dBA
24.9% above 55 dBA
See how noise in Worcester County compares to similar-sized counties.
Noise by Part of Worcester County
Average noise levels for Worcester County residents, grouped by direction from the center of Worcester County. The highest population-weighted average is in the Ocean Pines, Ocean City, and Berlin areas (northeastern Worcester County); the lowest is in western Worcester County, where just 1% of residents live in blocks above the EPA's 55 dBA threshold, a fifth of the share in the loudest section.
Ocean Pines, Ocean City & Berlin
52.9 dBA · Moderate
Quiet office to normal conversation
Eastern Worcester County
52.1 dBA · Moderate
Quiet office to normal conversation
Northern Worcester County
49.5 dBA · Mostly quiet
Quiet office
Southeastern Worcester County
43.7 dBA · Quiet
Quiet suburban street at night
Western Worcester County
42.4 dBA · Quiet
Quiet suburban street at night
To the human ear, noise in the Ocean Pines, Ocean City, and Berlin areas (northeastern Worcester County) sounds about 107% louder than in western Worcester County, a 10.5 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 State Hwy 90 do you need to be?
State Hwy 90 produces an estimated 70 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
70 dBA
Highway traffic 50 ft away
165 ft
57 dBA
Normal conversation an arm’s length away
330 ft
50 dBA
Quiet office
660 ft
43 dBA
Quiet suburban street at night
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 36% of Worcester County sits under tree canopy (heavier than most counties) and roughly 24% 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 Worcester County. 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.
How Noise Is Distributed Across Worcester County
The bar chart below shows the share of Worcester County residents in each noise band. About 83% of residents live below the EPA's 55 dBA threshold, and roughly 4% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Worcester County Compares
Worcester County sits at the louder end of the spectrum. Below: how Worcester County's average outdoor noise and share of residents above the EPA threshold compare with Wicomico County, Somerset County, Dorchester County, and Caroline County.
Average noise level (dBA)
Worcester County's 49.5 dBA pop-weighted average is at the louder end of the spectrum. Maryland as a whole averages 52.3 dBA and the U.S. averages 52.0 dBA. Both are lower than Worcester County because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 18.6% of Worcester County 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, 24.9% of Worcester County's footprint sits above 55 dBA, against a Maryland average of 32.9% and a national average of 28.1%.
What This Means if You're Moving to Worcester County
- 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 State Hwy 90 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 36% of Worcester County is under tree cover (heavier than most counties), and the dominant land cover is low-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.
