Mount Prospect, IL Noise Levels
Mount Prospect, IL: what the federal noise map shows
Mount Prospect, IL reads 57.5 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. Road traffic drives that number here, not the other two sources. This describes Mount Prospect as a whole, not a specific block, the underlying BTS map resolves to about 38 meters per pixel, sampled at the town's own center point.
Mount Prospect'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
Upgraded windows, door seals and STC-rated glazing meaningfully cut broadband, near-continuous road noise.
Where Mount Prospect ranks
Among the 3,622 US places in this dataset with any measurable transportation noise, Mount Prospect ranks 361, loudest first. By population, it ranks 742 of the 12,137 places in this dataset, home to about 55,460 people.
Your street may differ from Mount Prospect's reading
For a single house or lot in Mount Prospect 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 Mount Prospect's figure, see the methodology guide. Since road traffic is what's driving this reading, the guide to what actually cuts each kind of noise covers the fix that fits.