The raion covers an area of 10,897.6 square kilometres (4,207.6 sq mi).

[citation needed] It makes Korosten raion the largest by area in Ukraine.

[1] On 18 July 2020, as part of the administrative reform of Ukraine, the number of raions of Zhytomyr Oblast was reduced to four, and the area of Korosten Raion was significantly expanded.

[2][3] Before the expansion, the area of the raion was 865.2 square kilometres (334.1 sq mi).

[4] Agricultural Institute of Polesia is located in the village of Hrozyne.