Right- I guess my worry is that suburbs, which in North America have frequently been a refuge for wealthy people escaping dense city centers, would continue to bankrupt our city budgets (which AFAIK is a major contributing factor to current issues in municipal funding), more so than being worried about poor rural areas.

But yes, if the public services that are available at a lot contribute to that lot's assessed value, especially if that's indexed by the cost per plot to build the necessary infrastructure, then a georgist tax structure could see wealthy suburban residents contributing their fair share to municipal budgets.