Walnut, IA Noise Levels
Is Walnut, IA noisy?
Walnut, IA sits below the 45 dB(A) floor BTS's transportation noise model measures at all, road, rail and aircraft alike. That figure is sampled at one coordinate, the Census Bureau's own internal point for Walnut, not a street-by-street survey of the whole place.
Where Walnut ranks
There's no loudness rank for Walnut: it's one of 8,515 places nationally where BTS's model measures nothing above its 45 dB(A) floor. By population, it ranks 11,646 of the 12,137 places in this dataset, home to about 728 people.
Your street may differ from Walnut's reading
This page describes Walnut as a whole. If one specific address is what matters, BTS publishes the same underlying map for free.
Behind Walnut's reading
The methodology guide shows exactly how Walnut's reading was built from BTS's tile data. Walnut isn't the only surprise: the guide to why big cities show up quiet covers why this happens.