Here in Mississippi where I live, We have similar problems. We have a Como (Panola county) address but we live in Lafayette County. When my grandfather died his death certificate says he died in Panola County because we have a Como Address, but we live in a tiny "orphaned" section of Lafayette county. to add to this confusion, my small township has 3 counties involoved......there are those who have Marshall county as their mailing address but they live in Lafayette county
Also I have relatives that live on the state line between Mississippi and Alabama and before it was a state, the borders between territories and counties shifted so much that multiple addresses for the same location were generated.