Monument is a census-designated place (CDP) in northeastern Logan County, Kansas, United States.

Established sometime in the latter half of the 19th century, it was originally called Monument Station as it served as a stop for the overland stage and for travelers moving westward through Fort Wallace.

[3] The 2020 United States census counted 56 people, 23 households, and 11 families in Monument.

43.5% of households consisted of individuals and 26.1% had someone living alone who was 65 years of age or older.

[5] U.S. Route 40 highway and Union Pacific Railroad pass through Monument.