Rural living can be noisier than the suburbs. It depends on density, agriculture type, presence of commercial activity, etc. Where noise ordinances exist, they are generally more lenient outside city limits. In the USA, getting action against a noise nuisance is extremely difficult.

The quietest living experience I've had over the past decade has been a modern high-rise apartment in Korea. Between-unit noise insulation is good. If you are in a low-traffic area and high enough to be away from incidental street noise, you can have true silence most of the time. The only real threat to your peace is if you get clog dancers living above you.