Portland, IN Noise Levels
Portland, IN: what the federal noise map shows
At Portland, IN, road, rail and aircraft noise all fall below the 45 dB(A) floor BTS's national map can distinguish from silence. Treat this as Portland's one representative point, not a promise about every block in it, BTS's map wasn't built to resolve individual streets.
Where Portland ranks
Portland is one of 8,515 places in this dataset with no measurable transportation noise at all, too quiet to rank on loudness. About 6,233 people live there, making it the 4,320th largest place in this dataset.
Your street may differ from Portland's reading
For a single house or lot in Portland 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 Portland's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Portland.