New Castle, CO Noise Levels
New Castle, CO: what the federal noise map shows
New Castle, CO 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.
Treat this as New Castle's one representative point, not a promise about every block in it, BTS's map wasn't built to resolve individual streets.
Where New Castle ranks
New Castle is one of 8,515 places in this dataset with no measurable transportation noise at all, too quiet to rank on loudness. About 4,894 people live there, making it the 4,939th largest place in this dataset.
Your street may differ from New Castle's reading
For a single house or lot in New Castle 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 New Castle's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at New Castle.