赫梅利尼茨基州
Iziaslav Raion was a part of Volhynia. It was one out 20 raions of Khmelnytskyi Oblast. It was a large raion and ranked as the 2nd among the largest with respect to the total area (1,258 km2 corresponding to 6.1% of the total area of Khmelnytskyi Oblast).