Lead, SD Noise Levels
Lead, SD: what the federal noise map shows
At Lead, SD, road, rail and aircraft noise all fall below the 45 dB(A) floor BTS's national map can distinguish from silence. That's the reading at Lead's Census-defined center point, not any one street, BTS's map is a live raster, not a per-address service.
Where Lead ranks
Lead is one of 8,515 places in this dataset with no measurable transportation noise at all, too quiet to rank on loudness. Population is about 3,038, 6,286th largest of the 12,137 places covered here.
Your street may differ from Lead's reading
For a single house or lot in Lead 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 Lead's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Lead.