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

[2] Hillsdale is located near U.S. Route 169 and K-7, 6 miles (9.7 km) north-northeast of Paola.

Hillsdale, originally called Columbia, was laid out in 1869 when the railroad was extended to that point.

[6] The 2020 United States census counted 247 people, 103 households, and 71 families in Hillsdale.

[16][17] The community is served by Paola USD 368 public school district.