Killona is a census-designated place (CDP) in St. Charles Parish, Louisiana, United States.

[3] On December 14, 2022, the town was hit by a destructive and deadly EF2 tornado that damaged or destroyed numerous structures, killed one person, and injured eight others.

[4] Killona is located at 29°59′58″N 90°29′13″W / 29.99944°N 90.48694°W / 29.99944; -90.48694 (29.999471, -90.487081).

[5] According to the United States Census Bureau, the CDP has a total area of 9.3 square miles (24 km2), of which 8.5 square miles (22 km2) is land and 0.9 square miles (2.3 km2) (9.13%) is water.

St. Charles Parish Public School System operates public schools: Killona is home to the following: