Mont Ida is a census-designated place (CDP) in Anderson County, Kansas, United States.

[2] The railroad's construction across the area around 1880 marked the beginning of Mont Ida.

[3] A post office was opened in Mont Ida in 1880, and remained in operation until it was discontinued in 1944.

[4] The 2020 United States census counted 23 people, 6 households, and 5 families in Mont Ida.

0.0% of households consisted of individuals and 0.0% had someone living alone who was 65 years of age or older.