Marion, NC Noise Levels
Marion, NC: what the federal noise map shows
At Marion, NC, road, rail and aircraft noise all fall below the 45 dB(A) floor BTS's national map can distinguish from silence. Treat this as Marion's one representative point, not a promise about every block in it, BTS's map wasn't built to resolve individual streets.
Where Marion ranks
There's no loudness rank for Marion: it's one of 8,515 places nationally where BTS's model measures nothing above its 45 dB(A) floor. Population is about 7,534, 3,870th largest of the 12,137 places covered here.
Your street may differ from Marion's reading
For a single house or lot in Marion 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 Marion's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Marion.