Westminster, MD Noise Levels
How loud is Westminster, MD?
At 47.5 dB(A), Westminster, MD 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 aircraft, well ahead of the other two modes BTS tracks. That figure is sampled at one coordinate, the Census Bureau's own internal point for Westminster, not a street-by-street survey of the whole place.
Where Westminster'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 Westminster
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.
How Westminster compares nationally
Westminster ranks 2,115 of 3,622 measured places nationally, 1 being the loudest this dataset covers. Population is about 20,662, 1,872th largest of the 12,137 places covered here.
Checking one address in Westminster
Nothing here substitutes for checking one address in Westminster directly, and BTS's own map lets anyone do that at no cost.
Westminster'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 aircraft calls for a different fix than the other two sources.