Melvern is a city in Osage County, Kansas, United States,[1] along the Marais des Cygnes River.

[9] According to the United States Census Bureau, the city has a total area of 0.35 square miles (0.91 km2), all land.

[10] Melvern is part of the Topeka, Kansas Metropolitan Statistical Area.

The 2020 United States census counted 356 people, 151 households, and 92 families in Melvern.

There were 180 housing units at an average density of 505.6 per square mile (195.2/km2).

30.5% of households consisted of individuals and 17.2% had someone living alone who was 65 years of age or older.

There were 184 housing units at an average density of 525.7 per square mile (203.0/km2).

27.0% of all households were made up of individuals, and 10% had someone living alone who was 65 years of age or older.

28.9% of all households were made up of individuals, and 14.5% had someone living alone who was 65 years of age or older.

The community is served by Marais des Cygnes Valley USD 456 public school district.

The Melvern Panthers won the Kansas State High School boys class B basketball championship in 1962.