Newport Beach, CA Noise Levels
Is Newport Beach, CA noisy?
Newport Beach, CA reads 47.5 dB(A) on BTS's 24-hour average, inside HUD's "Acceptable" noise zone, 65 dB(A) day-night average or below under 24 CFR 51.104, the federal government's own line for building housing with no extra sound attenuation required. Aircraft drives that number here, not the other two sources. Newport Beach's reading comes from a single sampled point, not a block-by-block sweep, so a specific address here could genuinely differ.
Newport Beach's noise, by source
Each of the three transportation modes gets its own model from BTS; the combined figure above is what they add up to.
What this means for a house here
Aircraft noise is intermittent and lower-frequency, which is why FAA’s Part 150 program funds whole-envelope sound insulation for homes inside an airport’s own mapped noise contour rather than relying on window replacement alone.
Where Newport Beach ranks
Among the 3,622 US places in this dataset with any measurable transportation noise, Newport Beach ranks 1,865, loudest first. By population, it ranks 447 of the 12,137 places in this dataset, home to about 82,970 people.
Your street may differ from Newport Beach's reading
This page describes Newport Beach as a whole. If one specific address is what matters, BTS publishes the same underlying map for free.
Behind Newport Beach's reading
The methodology guide shows exactly how Newport Beach's reading was built from BTS's tile data. Since aircraft is what's driving this reading, the guide to what actually cuts each kind of noise covers the fix that fits.