Harrisburg, SD Noise Levels
How loud is Harrisburg, SD?
None of the three transportation sources BTS models, road, rail or aircraft, register above 45 dB(A) at Harrisburg, SD. That's the reading at Harrisburg's Census-defined center point, not any one street, BTS's map is a live raster, not a per-address service.
How Harrisburg compares nationally
Harrisburg, SD sits among 8,515 US places this dataset covers with no measurable transportation noise, out of 12,137 places checked overall. By population, it ranks 3,152 of the 12,137 places in this dataset, home to about 10,203 people.
Checking one address in Harrisburg
Nothing here substitutes for checking one address in Harrisburg directly, and BTS's own map lets anyone do that at no cost.
Harrisburg's number isn't a one-off calculation, it comes from the same method covered in the methodology guide. See the why New York City shows up quiet here too for why a real place can show no reading at all.