Coolidge is a city in Hamilton County, Kansas, United States.

[6] According to the United States Census Bureau, the city has a total area of 0.46 square miles (1.19 km2), all of it land.

[8] The 2020 United States census counted 80 people, 28 households, and 16 families in Coolidge.

There were 44 housing units at an average density of 95.2 per square mile (36.8/km2).

35.7% of households consisted of individuals and 17.9% had someone living alone who was 65 years of age or older.

There were 49 housing units at an average density of 106.5 per square mile (41.1/km2).

32.6% of all households were made up of individuals, and 18.6% had someone living alone who was 65 years of age or older.

27.8% of all households were made up of individuals, and 22.2% had someone living alone who was 65 years of age or older.

There were no families and 3.0% of the population living below the poverty line, including no under eighteens and 6.3% of those over 64.

In the 1983 movie National Lampoon's Vacation starring Chevy Chase as Clark Griswold, the Griswolds visits Cousin Eddie and his family, who live on a farm outside Coolidge.