人じん口こう密みっ集しゅう率りつ

noun

population density

A formal, statistical term for the number of people per unit area. Often used in demographic or urban planning contexts.

• この地ち域いきの人じん口こう密みっ集しゅう率りつは非ひ常じょうに高たかい。

  The population density of this area is very high.