How to best estimate after-purchase property taxes - Ohio

[P.J. Bremner]

I've been analysing a ton of deals in Cleveland area for buy-and-hold and the biggest variable that I have not been able to efficiently estimate is the property taxes.  I notice that on some sites, they estimate taxes as low as 1.5% and it can go all the way up to nearly 5% (even within the same zip code).  I realize some areas have crazy taxes, but how do I know for sure which ones?

In Southern California, where i'm currently located and have a few rentals, it is much easier to get property tax to within a few bucks per year (I use 1.33% x purchase price) and it pretty much doesn't deviate from that by much, even going from LA county to San Bernardino or Riverside county.

Thank you in advance for your help!