In urban environments, due to the housing conditions after the 1980s (a drop in single-family homes with gardens but increased collective housing such as apartments) and the declining birthrate, one would see far fewer koi-nobori hoisted high up in the gardens of private residences, as once described in children's songs.
なお都市周辺では、1980年代以降の住宅事情（庭付き一戸建て住宅の減少とマンションなど集合住宅の増加）や少子化などのため、後述の童謡に歌われるような、民家の庭に高々と鯉のぼりが揚がる姿を見ることは少なくなっている。