Noise Levels in Firthtown, Phillipsburg, NJ | Find Quiet Neighborhoods With Our Sound Map
50 dBA
Average noise across Firthtown
Quiet office
964
Residents above the EPA 55 dBA threshold
24% of Firthtown residents
69 dBA
Loudest residential point
Highway traffic 50 ft away
This map shows modeled outdoor noise across Firthtown 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 964 Firthtown residents, or 23.5%, live above that level. By land area, 26.8% of Firthtown is above 55 dBA.
Average noise levels for Firthtown residents, grouped by direction from the center of Firthtown. Southern Firthtown carries the highest population-weighted average; Northern Firthtown carries the lowest. Just 22% of residents in Northern Firthtown live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in Southern Firthtown.
Central Firthtown
49.7 dBA · Mostly quiet
Quiet office
28% of people above 55 dBA
QuietLoud
Eastern Firthtown
51.4 dBA · Moderate
Quiet office to normal conversation
21% of people above 55 dBA
QuietLoud
Northern Firthtown
47.3 dBA · Mostly quiet
Quiet office
22% of people above 55 dBA
QuietLoud
Southern Firthtown
52.9 dBA · Moderate
Quiet office to normal conversation
30% of people above 55 dBA
QuietLoud
Western Firthtown
50.5 dBA · Moderate
Quiet office
0% of people above 55 dBA
QuietLoud
Southern Firthtown sounds about 47% louder than Northern Firthtown to the human ear, a 5.6 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 69 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
69 dBA
Highway traffic 50 ft away
165 ft
56 dBA
Quiet office to normal conversation
330 ft
48 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 17% of Firthtown sits under tree canopy (about average for neighborhoods) and roughly 60% 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 Firthtown. 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 Firthtown
The bar chart below shows the share of Firthtown residents in each noise band. About 79% of residents live below the EPA's 55 dBA threshold, and roughly 9% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Firthtown Compares
Firthtown sits at the quieter end of the spectrum. Below: how Firthtown's average outdoor noise and share of residents above the EPA threshold compare with North End, dishwater-hill-phillipsburg-nj, flemington-historic-district-flemington-nj, and Top Road.
Average noise level (dBA)
Firthtown's 50.4 dBA pop-weighted average is at the quieter end of the spectrum. New Jersey as a whole averages 49.8 dBA and the U.S. averages 52.0 dBA. Both are lower than Firthtown because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 23.5% of Firthtown 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, 26.8% of Firthtown's footprint sits above 55 dBA, against a New Jersey average of 25.2% and a national average of 28.1%.
What This Means if You're Moving to Firthtown
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 17% of Firthtown is under tree cover (about average for 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.
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.
