Palmer is a city in Washington County, Kansas, United States.

[6] According to the United States Census Bureau, the city has a total area of 0.31 square miles (0.80 km2), all land.

[7] The 2020 United States census counted 125 people, 55 households, and 37 families in Palmer.

There were 63 housing units at an average density of 203.9 per square mile (78.7/km2).

30.9% of households consisted of individuals and 16.4% had someone living alone who was 65 years of age or older.

There were 62 housing units at an average density of 200.0 per square mile (77.2/km2).

32.0% of all households were made up of individuals, and 12% had someone living alone who was 65 years of age or older.

37.5% of all households were made up of individuals, and 22.9% had someone living alone who was 65 years of age or older.

There were 8.0% of families and 11.8% of the population living below the poverty line, including no under eighteens and 30.0% of those over 64.

The community and nearby rural areas are served by Barnes–Hanover–Linn USD 223 public school district.