Thank-you for the additional info sent directly to me.
To update the "mobile" is a newer mfg home on 8 acres in an area that is more newer custom homes than mfg. homes. The current tax rate is reflective of a values back in the hey day, over $400,000. now currently listed at 249K, so taxes for new owner will be less when the property is re-assessed.
The link to the mobile home didn't show up, can you give us an address? Some of the mobiles in our area are on owned land, if I have the address I can help you or the property tax info you are looking at to see if it is correct or not.