noun
town area; neighborhood; most specific part of an address
Used in postal and administrative contexts to refer to the smallest named division within a municipality, often the part of an address after the city/ward and before the block number. Also used more generally for a neighborhood or district.
この郵便番号は、町域ごとに割り当てられています。
This postal code is assigned to each town area.
町域によって、ごみの収集日が異なります。
Garbage collection days differ by neighborhood.