Spencer, IA Noise Levels
Noise levels in Spencer, IA
At 47.5 dB(A), Spencer, 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. Spencer's reading comes from a single sampled point, not a block-by-block sweep, so a specific address here could genuinely differ.
Where Spencer'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.
How Spencer compares nationally
Spencer ranks 2,291 of 3,622 measured places nationally, 1 being the loudest this dataset covers. By population, it ranks 2,913 of the 12,137 places in this dataset, home to about 11,418 people.
Checking one address in Spencer
Spencer's figure above is a town-wide reading. For one exact address, BTS's own map is the free, authoritative source.
Where Spencer's figures come from
Every dB(A) figure on this page traces to a named BTS dataset, documented in the methodology guide. Curious why Spencer reads as quiet? The explanation of what a quiet result actually means covers it.