Oketo is a city in Marshall County, Kansas, United States.

[3] Oketo was incorporated as a city, as defined by Kansas law, in 1870.

[6] According to the United States Census Bureau, the city has a total area of 0.11 square miles (0.28 km2), all land.

[7] The 2020 United States census counted 64 people, 30 households, and 22 families in Oketo.

There were 40 housing units at an average density of 388.3 per square mile (149.9/km2).

26.7% of households consisted of individuals and 13.3% had someone living alone who was 65 years of age or older.

38.7% of all households were made up of individuals, and 19.4% had someone living alone who was 65 years of age or older.

29.3% of all households were made up of individuals, and 12.2% had someone living alone who was 65 years of age or older.

There were 8.7% of families and 9.5% of the population living below the poverty line, including no under eighteens and none of those over 64.

The community is served by Marysville USD 364 public school district.