French Lake Township is located in Township 120 North of the Arkansas Base Line and Range 28 West of the 5th Principal Meridian.

As of the census[1] of 2000, there were 1,130 people, 405 households, and 311 families residing in the township.

There were 615 housing units at an average density of 18.4 per square mile (7.1/km2).

There were 405 households, out of which 33.8% had children under the age of 18 living with them, 69.1% were married couples living together, 4.4% had a female householder with no husband present, and 23.0% were non-families.

19.3% of all households were made up of individuals, and 7.7% had someone living alone who was 65 years of age or older.