Noise Levels in Merkel, TX | Find Quiet Neighborhoods With Our Sound Map
48 dBA
Average noise across Merkel
Quiet office
539
Residents above the EPA 55 dBA threshold
19% of Merkel residents
80 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Merkel 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 539 Merkel residents, or 18.7%, live above that level. By land area, 25.5% of Merkel is above 55 dBA.
74.5% below 55 dBA
25.5% above 55 dBA
See how noise in Merkel compares to similar-sized cities.
Noise by Part of Merkel
Average noise levels for Merkel residents, grouped by direction from the center of Merkel. Central Merkel carries the highest population-weighted average; Northern Merkel carries the lowest. Just 1% of residents in Northern Merkel live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Central Merkel.
Central Merkel
56.3 dBA · Moderate-loud
Normal conversation an arm’s length away
Eastern Merkel
47.8 dBA · Mostly quiet
Quiet office
Northern Merkel
43.2 dBA · Quiet
Quiet suburban street at night
Southern Merkel
45.8 dBA · Mostly quiet
Quiet suburban street at night
Western Merkel
51.7 dBA · Moderate
Quiet office to normal conversation
Central Merkel sounds about 148% louder than Northern Merkel to the human ear, a 13.1 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 I-20 do you need to be?
I-20 produces an estimated 76 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
76 dBA
City bus interior
165 ft
63 dBA
Busy restaurant
330 ft
55 dBA
Quiet office to normal conversation
660 ft
47 dBA
Quiet office
¼ mile
39 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 1% of Merkel sits under tree canopy (much lighter than most cities) and roughly 16% 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 Merkel. 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 Merkel
The bar chart below shows the share of Merkel residents in each noise band. About 78% of residents live below the EPA's 55 dBA threshold, and roughly 8% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Merkel Compares
Merkel sits the highest among the peer group. Below: how Merkel's average outdoor noise and share of residents above the EPA threshold compare with Buffalo Gap, Tuscola, Tye, and Anson.
Average noise level (dBA)
Merkel's 47.9 dBA pop-weighted average is the highest among the peer group. Texas as a whole averages 50.8 dBA and the U.S. averages 52.0 dBA. Both are lower than Merkel because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 18.7% of Merkel 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, 25.5% of Merkel's footprint sits above 55 dBA, against a Texas average of 22.8% and a national average of 28.1%.
What This Means if You're Moving to Merkel
- 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 I-20 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 1% of Merkel is under tree cover (much lighter than most cities), 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.
