Gridley is a city in Coffey County, Kansas, United States.

[6] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

[7] The 2020 United States census counted 313 people, 136 households, and 82 families in Gridley.

There were 160 housing units at an average density of 373.8 per square mile (144.3/km2).

36.0% of households consisted of individuals and 16.9% had someone living alone who was 65 years of age or older.

[13] The percent of those with a bachelor’s degree or higher was estimated to be 10.5% of the population.

There were 174 housing units at an average density of 424.4 per square mile (163.9/km2).

32.6% of all households were made up of individuals, and 17.4% had someone living alone who was 65 years of age or older.

There were 168 housing units at an average density of 448.4 per square mile (173.1/km2).

26.6% of all households were made up of individuals, and 18.4% had someone living alone who was 65 years of age or older.

The Southern Coffey County High School mascot is Titans.