Decatur, GA Noise Levels
How loud is Decatur, GA?
At 47.5 dB(A), Decatur, GA 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. This describes Decatur as a whole, not a specific block, the underlying BTS map resolves to about 38 meters per pixel, sampled at the town's own center point.
Where Decatur'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.
How Decatur compares nationally
Decatur ranks 2,068 of 3,622 measured places nationally, 1 being the loudest this dataset covers. Population is about 24,482, 1,640th largest of the 12,137 places covered here.
Checking one address in Decatur
Nothing here substitutes for checking one address in Decatur directly, and BTS's own map lets anyone do that at no cost.
Decatur's number isn't a one-off calculation, it comes from the same method covered in the methodology guide. See the why New York City shows up quiet here too for why a real place can show no reading at all.