Property Tax Questions - Memphis

[George T.]

Hello everyone, 

I am trying to figure out how the property taxes are calculated. As the mortgage company is currently taking care of that, i did not have to worry, but I would like to understand how they are computed. For example I own a rental property in Memphis, TN  in Shelby County. When I go on the official website of the county, I see two type of taxes: county tax and city tax with different amounts. What is the difference?

The millage rate is 3.4 for my rental unit. Is this considered above average or below? How do you quantify it? I known that the total appraised value is 114'900 USD and the taxable amount is 25% = 28'725 USD. So with a mill rate of 3.4 the amount of property tax due is 976.65 (which I see on the website of City of Memphis) but why the Shelby county tax is $1,255.28 USD?

Any help would be greatly appreciated.

George