North Vernon, IN Noise Levels
North Vernon, IN: what the federal noise map shows
North Vernon, IN 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.
That's the reading at North Vernon's Census-defined center point, not any one street, BTS's map is a live raster, not a per-address service.
Where North Vernon ranks
North Vernon is one of 8,515 places in this dataset with no measurable transportation noise at all, too quiet to rank on loudness. About 6,565 people live there, making it the 4,200th largest place in this dataset.
Your street may differ from North Vernon's reading
For a single house or lot in North Vernon 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 North Vernon's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at North Vernon.