Hillside, IL Noise Levels
Hillside, IL: what the federal noise map shows
Hillside, IL reads 52.5 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. Treat this as Hillside's one representative point, not a promise about every block in it, BTS's map wasn't built to resolve individual streets.
Hillside'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 Hillside ranks
Among the 3,622 US places in this dataset with any measurable transportation noise, Hillside ranks 1,128, loudest first. By population, it ranks 3,723 of the 12,137 places in this dataset, home to about 8,031 people.
Your street may differ from Hillside's reading
For a single house or lot in Hillside 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 Hillside's figure, see the methodology guide. Since aircraft is what's driving this reading, the guide to what actually cuts each kind of noise covers the fix that fits.