Percy, IL Noise Levels
Noise levels in Percy, IL
At 57.5 dB(A), Percy, IL 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. Percy's reading comes from a single sampled point, not a block-by-block sweep, so a specific address here could genuinely differ.
Where Percy'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 Percy
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 Percy compares nationally
Percy ranks 725 of 3,622 measured places nationally, 1 being the loudest this dataset covers. By population, it ranks 10,707 of the 12,137 places in this dataset, home to about 907 people.
Checking one address in Percy
Percy's figure above is a town-wide reading. For one exact address, BTS's own map is the free, authoritative source.
Where Percy's figures come from
Every dB(A) figure on this page traces to a named BTS dataset, documented 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.