Metropolis, IL Noise Levels
Metropolis, IL: what the federal noise map shows
At Metropolis, IL, road, rail and aircraft noise all fall below the 45 dB(A) floor BTS's national map can distinguish from silence. Metropolis's reading comes from a single sampled point, not a block-by-block sweep, so a specific address here could genuinely differ.
Where Metropolis ranks
There's no loudness rank for Metropolis: it's one of 8,515 places nationally where BTS's model measures nothing above its 45 dB(A) floor. Population is about 5,776, 4,500th largest of the 12,137 places covered here.
Your street may differ from Metropolis's reading
For a single house or lot in Metropolis 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 Metropolis's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Metropolis.