I don't understand how that stuff works, I see some that aren't listed now and again. I also see some that the "tax address" is listed as the actual address of the property, despite there being no residence, no mail delivery, sometimes no nothing.
As a side note, I don't understand where any of that online map info comes from or how it gets shared, or doesn't. EVERY single online map shows a road on my families property that doesn't exist. I submitted a "map correction" with Garmin decades ago and it did no good. There's no road and hasn't been for sure, for almost a 100 years. Knowing the terrain features and elevation changes, I doubt there ever could have been. So how does it keep getting propagated?