Zion, IL Noise Levels
Zion, IL: what the federal noise map shows
At Zion, IL, road, rail and aircraft noise all fall below the 45 dB(A) floor BTS's national map can distinguish from silence. This describes Zion 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 Zion ranks
Zion is one of 8,515 places in this dataset with no measurable transportation noise at all, too quiet to rank on loudness. By population, it ranks 1,635 of the 12,137 places in this dataset, home to about 24,583 people.
Your street may differ from Zion's reading
For a single house or lot in Zion rather than the town-wide figure above, BTS's own map is the same free source, queried directly.
More on how this number was built
For exactly which federal dataset feeds Zion's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Zion.