You can find the address by going to the county assessor's website (I use netronline.com), click on the state, then county, and it should give you a place to type in the parcel number and it will show you the address. Some counties don't have an online system in place. In that case you can call the county assessor's office (netronline.com also has the phone numbers of the county offices on there), and tell then you have a parcel number you need an address for it. Most will be willing to help you.