The area of Kilkis - regional unit - is 2,519 square kilometers.
Kilkis - regional unit - was created in 2011.
The population of Kilkis - regional unit - is 91,828.
The area of Rethymno - regional unit - is 1,496 square kilometers.
The area of Ioannina - regional unit - is 4,990 square kilometers.
The area of Chios - regional unit - is 904 square kilometers.
The area of Corfu - regional unit - is 641.057 square kilometers.
The area of Preveza - regional unit - is 1,036 square kilometers.
The area of Pieria - regional unit - is 1,516 square kilometers.
The area of Euboea - regional unit - is 4,167 square kilometers.
The area of Chania - regional unit - is 2,376 square kilometers.
The area of Trikala - regional unit - is 3,384 square kilometers.
The area of Florina - regional unit - is 1,924 square kilometers.