About 57 thousand square miles. (56,977 mi^2)
Illinois has a total area of around 57,914 square miles, which is approximately 149,997 square kilometers.
The area of Austrheim is 57 square kilometers.
The area of Cuijk is 57 square kilometers.
The area of Vaglia is 57 square kilometers.
The area of Castelcivita is 57 square kilometers.
The area of Minucciano is 57 square kilometers.
The area of Vertavillo is 57 square kilometers.
The area of Montmorillon is 57 square kilometers.
The area of Güzelbahçe is 57 square kilometers.
The area of Alcaine is 57 square kilometers.
The area of Baikonur is 57 square kilometers.