Jennings is a city in Decatur County, Kansas, United States.

[8][9] Jennings was located on the Chicago, Rock Island and Pacific Railroad.

[10] Jennings was a popular area for Czech immigrants to settle and start their farms.

[11] According to the United States Census Bureau, the city has a total area of 0.27 square miles (0.70 km2), all land.

[12] The 2020 United States census counted 81 people, 52 households, and 20 families in Jennings.

There were 76 housing units at an average density of 283.6 per square mile (109.5/km2).

55.8% of households consisted of individuals and 26.9% had someone living alone who was 65 years of age or older.

There were 89 housing units at an average density of 329.6 per square mile (127.3/km2).

34.0% of all households were made up of individuals, and 18% had someone living alone who was 65 years of age or older.

37.0% of all households were made up of individuals, and 21.9% had someone living alone who was 65 years of age or older.

There were none of the families and 12.0% of the population living below the poverty line, including no under eighteens and 9.5% of those over 64.