Buckeye is a city in Hardin County, Iowa, United States.

[4] According to the United States Census Bureau, the city has a total area of 1.00 square mile (2.59 km2), all land.

There were 48 housing units at an average density of 48.6 per square mile (18.8/km2).

There were 49 housing units at an average density of 49.0 per square mile (18.9/km2).

27.3% of all households were made up of individuals, and 9.1% had someone living alone who was 65 years of age or older.

There were 50 housing units at an average density of 49.8 per square mile (19.2/km2).

35.6% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older.

There were 7.7% of families and 5.3% of the population living below the poverty line, including no under eighteens and 23.8% of those over 64.