Jennings is a town in Pawnee County, Oklahoma, United States.

[4] According to the United States Census Bureau, the town has a total area of 0.6 square miles (1.6 km2), all land.

There were 173 housing units at an average density of 311.5 per square mile (120.3/km2).

The racial makeup of the town was 84.72% White, 11.80% Native American, 0.27% Pacific Islander, and 3.22% from two or more races.

25.7% of all households were made up of individuals, and 11.4% had someone living alone who was 65 years of age or older.