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

A post office was opened in Newbury in 1870, and remained in operation until it was discontinued in 1888.

[3] The 2020 United States census counted 78 people, 25 households, and 20 families in Newbury.

20.0% of households consisted of individuals and 8.0% had someone living alone who was 65 years of age or older.

[5] The community is served by Wabaunsee USD 329 public school district.