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

From the years 1876 until 1881, the post office was called either Danube, Kelso, or Prag for some time.

[4] The 2020 United States census counted 41 people, 15 households, and 9 families in Ludell.

40.0% of households consisted of individuals and 20.0% had someone living alone who was 65 years of age or older.

[6] The community is served by Rawlins County USD 105 public school district.