Cahokia Heights, IL Noise Levels
How loud is Cahokia Heights, IL?
BTS only publishes Cahokia Heights, IL in the 70-79.9 dB(A) band, which straddles HUD's own dividing line: depending on exactly where in that range the true 24-hour average falls, this reads as "Normally Unacceptable" (65-75 dB(A)) or "Unacceptable" (above 75 dB(A)) under 24 CFR 51.104. The main source is aircraft, well ahead of the other two modes BTS tracks. That figure is sampled at one coordinate, the Census Bureau's own internal point for Cahokia Heights, not a street-by-street survey of the whole place.
Where Cahokia Heights'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 Cahokia Heights
That also clears FHWA's own 66 dB(A) impact threshold for residential land use (23 CFR 772, Table 1), the level highway agencies use to decide whether a new road needs a sound wall. Aircraft noise is intermittent and lower-frequency, which is why FAA’s Part 150 program funds whole-envelope sound insulation for homes inside an airport’s own mapped noise contour rather than relying on window replacement alone.
How Cahokia Heights compares nationally
Cahokia Heights ranks 28 of 3,622 measured places nationally, 1 being the loudest this dataset covers. About 17,052 people live there, making it the 2,189th largest place in this dataset.
Checking one address in Cahokia Heights
Nothing here substitutes for checking one address in Cahokia Heights directly, and BTS's own map lets anyone do that at no cost.
Cahokia Heights'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 aircraft calls for a different fix than the other two sources.