Lafontaine is a census-designated place (CDP) in Wilson County, Kansas, United States.

[3][4] A post office was opened in Lafontaine in 1879, and remained in operation until it was discontinued in 1991.

[5] The 2020 United States census counted 58 people, 23 households, and 14 families in Lafontaine.

30.4% of households consisted of individuals and 17.4% had someone living alone who was 65 years of age or older.

This article about a location in Wilson County, Kansas is a stub.