Redfield, IA Noise Levels
Redfield, IA: what the federal noise map shows
Redfield, IA is one of the places where the federal model has nothing to report above its 45 dB(A) floor, on any of the three sources.
Redfield's reading comes from a single sampled point, not a block-by-block sweep, so a specific address here could genuinely differ.
Where Redfield ranks
Redfield 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 11,701 of the 12,137 places in this dataset, home to about 719 people.
Your street may differ from Redfield's reading
For a single house or lot in Redfield 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 Redfield's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Redfield.