Ankeny, IA Noise Levels
How loud is Ankeny, IA?
At 47.5 dB(A), Ankeny, IA falls 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. The main source is road traffic, well ahead of the other two modes BTS tracks. That figure is sampled at one coordinate, the Census Bureau's own internal point for Ankeny, not a street-by-street survey of the whole place.
Where Ankeny's noise comes from
BTS models these three sources separately before combining them, so a place can be quiet on two and loud on the third.
If you're weighing a move to Ankeny
Upgraded windows, door seals and STC-rated glazing meaningfully cut broadband, near-continuous road noise.
How Ankeny compares nationally
Ankeny ranks 1,874 of 3,622 measured places nationally, 1 being the loudest this dataset covers. By population, it ranks 496 of the 12,137 places in this dataset, home to about 76,727 people.
Checking one address in Ankeny
Nothing here substitutes for checking one address in Ankeny directly, and BTS's own map lets anyone do that at no cost.
Ankeny's number isn't a one-off calculation, it comes from the same method covered in the methodology guide. The guide to what actually cuts each kind of noise explains why road traffic calls for a different fix than the other two sources.