Coggon, IA Noise Levels
Coggon, IA: what the federal noise map shows
At Coggon, IA, road, rail and aircraft noise all fall below the 45 dB(A) floor BTS's national map can distinguish from silence. This describes Coggon 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 Coggon ranks
There's no loudness rank for Coggon: it's one of 8,515 places nationally where BTS's model measures nothing above its 45 dB(A) floor. By population, it ranks 11,870 of the 12,137 places in this dataset, home to about 691 people.
Your street may differ from Coggon's reading
For a single house or lot in Coggon 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 Coggon's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Coggon.