At the beginning of World War II, the town had a Jewish population representing 28% of the inhabitants.[5] As soon as the Germans occupied the town, Jews were kept imprisoned in a ghetto and were later murdered in mass executions perpetrated by Einsatzgruppen.[6]
Until 18 July 2020, Iziaslav was the administrative center of Iziaslav Raion. The raion was abolished in July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Khmelnytskyi Oblast to three. The area of Iziaslav Raion was merged into Shepetivka Raion.[7][8]
^Михайло Нікітенко. Знайдено давньоруський город на Волині // "Золоті ворота" № 3, 1994, с. 6-14; Його ж: До питання про літописний Ізяславль: нові археологічні дані. // Велика Волинь: минуле й сучасне. Хмельницький — Ізяслав — Шепетівка, 1994. с. 237—239 (in Ukrainian).