Popilnia (Ukrainian: Попільня) is an urban-type settlement in Popilnia Raion, Zhytomyr Oblast, Ukraine. It is the administrative center of the Popilnia Raion. Population: 6,006 (2013 est.) In 2001, population was 6,109.
Coordinates: 49°56′42″N 29°27′35″E / 49.94500°N 29.45972°E