While it isn’t the same as answering, “Where is the neighborhood cut-off for my child to attend X elementary school?” these Columbus School and Municipality school maps are nice to check out. Pictured is Grandview’s which people are often unsure of due to the hit and miss nature of the northern boundary. Many people think all of Third Avenue north to 5th Ave is part of Grandview.
These are available from the County Auditor’s updated site.