This has little to do with what town or city you live in.
Living in a congested apartment complex in any town or city is pretty much a dead end. But, a stand-alone house with 2 dedicated lines installed (one for digital components and the other for analog components) is a pretty good start. Ditch the trash romex and spend a li’l more on the wire for those 2 dedicated lines before the electrician comes over. After that, the right type of conditioners (Audioquest Niagara and a couple of others come to mind) will do the trick.