Defiance, OH Noise Levels
How loud is Defiance, OH?
At 52.5 dB(A), Defiance, OH falls inside HUD's "Acceptable" noise zone, 65 dB(A) day-night average or below under 24 CFR 51.104, the federal government's own line for building housing with no extra sound attenuation required. The main source is rail traffic, well ahead of the other two modes BTS tracks. That figure is sampled at one coordinate, the Census Bureau's own internal point for Defiance, not a street-by-street survey of the whole place.
Where Defiance's noise comes from
BTS models these three sources separately before combining them, so a place can be quiet on two and loud on the third.
If you're weighing a move to Defiance
The same window and door upgrades that work on road noise also cut broadband rail noise, though very low-frequency freight rumble travels through walls, not just glass.
How Defiance compares nationally
Defiance ranks 988 of 3,622 measured places nationally, 1 being the loudest this dataset covers. About 17,180 people live there, making it the 2,180th largest place in this dataset.
Checking one address in Defiance
Nothing here substitutes for checking one address in Defiance directly, and BTS's own map lets anyone do that at no cost.
Defiance's number isn't a one-off calculation, it comes from the same method covered in the methodology guide. The guide to what actually cuts each kind of noise explains why rail traffic calls for a different fix than the other two sources.