U.S. geography is uniquely complex. Census tracts (which are Scout's neighborhoods) are subdivisions of a county, and don't always fit cleanly within the city boundaries that we are familiar with. Some neighborhoods aren't assigned to any municipality; some are unincorporated. And some towns are incorporated but serviced by post offices or public works from a neighboring municipality.
To ensure that no terra firma goes unassigned, we did a spatial overlay of the census tracts onto city and town boundaries. Then we named each census tract to the local colloquially recognized neighborhood name for that spot (e.g., Boston, MA (Dorchester). If a name was not available, we named the census tract by the largest street intersection in the census tract (e.g., Worcester, MA (Belmont Hill / Shrewsbury Street).