Killian is a village in Livingston Parish, Louisiana, United States. The population was 1,053 at the 2000 census.
As of the census of 2000, there were 1,053 people, 407 households, and 310 families residing in the village. The population density was 95.0 inhabitants per square mile (36.7/km²). There were 590 housing units at an average density of 53.2 per square mile (20.6/km²).
There were 407 households out of which 30.2% had children under the age of 18 living with them.
The median income for a household in the village was $40,781, and the median income for a family was $42,885. Men had a median income of $41,058 versus $25,833 for women. The per capita income for the village was $19,648. About 7.3% of families and 10.2% of the population were below the poverty line, including 12.8% of those under age 18 and 10.2% of those age 65 or over.