As of the census[1] of 2000, there were 331 people, 128 households, and 98 families residing in the township.

There were 190 housing units at an average density of 5.4 per square mile (2.1/km2).

22.7% of all households were made up of individuals, and 4.7% had someone living alone who was 65 years of age or older.

Christiania Township is located in Minnesota's 1st congressional district, represented by Mankato educator Tim Walz, a Democrat.

At the state level, Christiania Township is located in Senate District 22, represented by Republican Doug Magnus, and in House District 22B, represented by Republican Rod Hamilton.